Chunk size variation with no. of records

Hello
I have been trying to figure out the size of daily chunks based on telemetry data being received every second from IOT devices.

The chunk size does not seem to change even when I try inserting data as per below:

Inserted for ts = 1687993199388 , Size of _hyper_1_34_chunk = 235 MB and count = 1856
Inserted for ts = 1687993199389 , Size of _hyper_1_34_chunk = 235 MB and count = 1889
Inserted for ts = 1687993199390 , Size of _hyper_1_34_chunk = 235 MB and count = 1922
Inserted for ts = 1687993199391 , Size of _hyper_1_34_chunk = 235 MB and count = 1955
Inserted for ts = 1687993199392 , Size of _hyper_1_34_chunk = 235 MB and count = 1988
Inserted for ts = 1687993199393 , Size of _hyper_1_34_chunk = 235 MB and count = 2021
Inserted for ts = 1687993199394 , Size of _hyper_1_34_chunk = 235 MB and count = 2054
Inserted for ts = 1687993199395 , Size of _hyper_1_34_chunk = 235 MB and count = 2087
Inserted for ts = 1687993199396 , Size of _hyper_1_34_chunk = 235 MB and count = 2120
Inserted for ts = 1687993199397 , Size of _hyper_1_34_chunk = 235 MB and count = 2153
Inserted for ts = 1687993199398 , Size of _hyper_1_34_chunk = 235 MB and count = 2186
Inserted for ts = 1687993199399 , Size of _hyper_1_34_chunk = 235 MB and count = 2219
Inserted for ts = 1687993199400 , Size of _hyper_1_34_chunk = 235 MB and count = 2252
Inserted for ts = 1687993199401 , Size of _hyper_1_34_chunk = 235 MB and count = 2285
Inserted for ts = 1687993199402 , Size of _hyper_1_34_chunk = 235 MB and count = 2318
Inserted for ts = 1687993199403 , Size of _hyper_1_34_chunk = 235 MB and count = 2351
Inserted for ts = 1687993199404 , Size of _hyper_1_34_chunk = 235 MB and count = 2384
Inserted for ts = 1687993199405 , Size of _hyper_1_34_chunk = 235 MB and count = 2417
Inserted for ts = 1687993199406 , Size of _hyper_1_34_chunk = 235 MB and count = 2450
Inserted for ts = 1687993199407 , Size of _hyper_1_34_chunk = 235 MB and count = 2483
Inserted for ts = 1687993199408 , Size of _hyper_1_34_chunk = 235 MB and count = 2516
Inserted for ts = 1687993199409 , Size of _hyper_1_34_chunk = 235 MB and count = 2549
Inserted for ts = 1687993199410 , Size of _hyper_1_34_chunk = 235 MB and count = 2582
Inserted for ts = 1687993199411 , Size of _hyper_1_34_chunk = 235 MB and count = 2615
Inserted for ts = 1687993199412 , Size of _hyper_1_34_chunk = 235 MB and count = 2648
Inserted for ts = 1687993199413 , Size of _hyper_1_34_chunk = 235 MB and count = 2681
Inserted for ts = 1687993199414 , Size of _hyper_1_34_chunk = 235 MB and count = 2714
Inserted for ts = 1687993199415 , Size of _hyper_1_34_chunk = 235 MB and count = 2747
Inserted for ts = 1687993199416 , Size of _hyper_1_34_chunk = 235 MB and count = 2780
Inserted for ts = 1687993199417 , Size of _hyper_1_34_chunk = 235 MB and count = 2813
Inserted for ts = 1687993199418 , Size of _hyper_1_34_chunk = 235 MB and count = 2846
Inserted for ts = 1687993199419 , Size of _hyper_1_34_chunk = 235 MB and count = 2879
Inserted for ts = 1687993199420 , Size of _hyper_1_34_chunk = 235 MB and count = 2912
Inserted for ts = 1687993199421 , Size of _hyper_1_34_chunk = 235 MB and count = 2945
Inserted for ts = 1687993199422 , Size of _hyper_1_34_chunk = 235 MB and count = 2978
Inserted for ts = 1687993199423 , Size of _hyper_1_34_chunk = 235 MB and count = 3011
Inserted for ts = 1687993199424 , Size of _hyper_1_34_chunk = 235 MB and count = 3044
Inserted for ts = 1687993199425 , Size of _hyper_1_34_chunk = 235 MB and count = 3077
Inserted for ts = 1687993199426 , Size of _hyper_1_34_chunk = 235 MB and count = 3110
Inserted for ts = 1687993199427 , Size of _hyper_1_34_chunk = 235 MB and count = 3143
Inserted for ts = 1687993199428 , Size of _hyper_1_34_chunk = 235 MB and count = 3176
Inserted for ts = 1687993199429 , Size of _hyper_1_34_chunk = 235 MB and count = 3209
Inserted for ts = 1687993199430 , Size of _hyper_1_34_chunk = 235 MB and count = 3242
Inserted for ts = 1687993199431 , Size of _hyper_1_34_chunk = 235 MB and count = 3275
Inserted for ts = 1687993199432 , Size of _hyper_1_34_chunk = 235 MB and count = 3308
Inserted for ts = 1687993199433 , Size of _hyper_1_34_chunk = 235 MB and count = 3341
Inserted for ts = 1687993199434 , Size of _hyper_1_34_chunk = 235 MB and count = 3374
Inserted for ts = 1687993199435 , Size of _hyper_1_34_chunk = 235 MB and count = 3407
Inserted for ts = 1687993199436 , Size of _hyper_1_34_chunk = 235 MB and count = 3440
Inserted for ts = 1687993199437 , Size of _hyper_1_34_chunk = 235 MB and count = 3473
Inserted for ts = 1687993199438 , Size of _hyper_1_34_chunk = 235 MB and count = 3506
Inserted for ts = 1687993199439 , Size of _hyper_1_34_chunk = 235 MB and count = 3539
Inserted for ts = 1687993199440 , Size of _hyper_1_34_chunk = 235 MB and count = 3572
Inserted for ts = 1687993199441 , Size of _hyper_1_34_chunk = 235 MB and count = 3605
Inserted for ts = 1687993199442 , Size of _hyper_1_34_chunk = 235 MB and count = 3638
Inserted for ts = 1687993199443 , Size of _hyper_1_34_chunk = 235 MB and count = 3671
Inserted for ts = 1687993199444 , Size of _hyper_1_34_chunk = 235 MB and count = 3704
Inserted for ts = 1687993199445 , Size of _hyper_1_34_chunk = 235 MB and count = 3737
Inserted for ts = 1687993199446 , Size of _hyper_1_34_chunk = 235 MB and count = 3770
Inserted for ts = 1687993199447 , Size of _hyper_1_34_chunk = 235 MB and count = 3803
Inserted for ts = 1687993199448 , Size of _hyper_1_34_chunk = 235 MB and count = 3836
Inserted for ts = 1687993199449 , Size of _hyper_1_34_chunk = 235 MB and count = 3869
Inserted for ts = 1687993199450 , Size of _hyper_1_34_chunk = 235 MB and count = 3902
Inserted for ts = 1687993199451 , Size of _hyper_1_34_chunk = 235 MB and count = 3935
Inserted for ts = 1687993199452 , Size of _hyper_1_34_chunk = 235 MB and count = 3968
Inserted for ts = 1687993199453 , Size of _hyper_1_34_chunk = 235 MB and count = 4001
Inserted for ts = 1687993199454 , Size of _hyper_1_34_chunk = 235 MB and count = 4034
Inserted for ts = 1687993199455 , Size of _hyper_1_34_chunk = 235 MB and count = 4067
Inserted for ts = 1687993199456 , Size of _hyper_1_34_chunk = 235 MB and count = 4100
Inserted for ts = 1687993199457 , Size of _hyper_1_34_chunk = 235 MB and count = 4133
Inserted for ts = 1687993199458 , Size of _hyper_1_34_chunk = 235 MB and count = 4166
Inserted for ts = 1687993199459 , Size of _hyper_1_34_chunk = 235 MB and count = 4199
Inserted for ts = 1687993199460 , Size of _hyper_1_34_chunk = 235 MB and count = 4232
Inserted for ts = 1687993199461 , Size of _hyper_1_34_chunk = 235 MB and count = 4265
Inserted for ts = 1687993199462 , Size of _hyper_1_34_chunk = 235 MB and count = 4298
Inserted for ts = 1687993199463 , Size of _hyper_1_34_chunk = 235 MB and count = 4331
Inserted for ts = 1687993199464 , Size of _hyper_1_34_chunk = 235 MB and count = 4364
Inserted for ts = 1687993199465 , Size of _hyper_1_34_chunk = 235 MB and count = 4397
Inserted for ts = 1687993199466 , Size of _hyper_1_34_chunk = 235 MB and count = 4430
Inserted for ts = 1687993199467 , Size of _hyper_1_34_chunk = 235 MB and count = 4463
Inserted for ts = 1687993199468 , Size of _hyper_1_34_chunk = 235 MB and count = 4496
Inserted for ts = 1687993199469 , Size of _hyper_1_34_chunk = 235 MB and count = 4529
Inserted for ts = 1687993199470 , Size of _hyper_1_34_chunk = 235 MB and count = 4562
Inserted for ts = 1687993199471 , Size of _hyper_1_34_chunk = 235 MB and count = 4595
Inserted for ts = 1687993199472 , Size of _hyper_1_34_chunk = 235 MB and count = 4628
Inserted for ts = 1687993199473 , Size of _hyper_1_34_chunk = 235 MB and count = 4661
Inserted for ts = 1687993199474 , Size of _hyper_1_34_chunk = 235 MB and count = 4694
Inserted for ts = 1687993199475 , Size of _hyper_1_34_chunk = 235 MB and count = 4727
Inserted for ts = 1687993199476 , Size of _hyper_1_34_chunk = 235 MB and count = 4760
Inserted for ts = 1687993199477 , Size of _hyper_1_34_chunk = 235 MB and count = 4793
Inserted for ts = 1687993199478 , Size of _hyper_1_34_chunk = 235 MB and count = 4826
Inserted for ts = 1687993199479 , Size of _hyper_1_34_chunk = 235 MB and count = 4859
Inserted for ts = 1687993199480 , Size of _hyper_1_34_chunk = 235 MB and count = 4892
Inserted for ts = 1687993199481 , Size of _hyper_1_34_chunk = 235 MB and count = 4925
Inserted for ts = 1687993199482 , Size of _hyper_1_34_chunk = 235 MB and count = 4958
Inserted for ts = 1687993199483 , Size of _hyper_1_34_chunk = 235 MB and count = 4991
Inserted for ts = 1687993199484 , Size of _hyper_1_34_chunk = 235 MB and count = 5024
Inserted for ts = 1687993199485 , Size of _hyper_1_34_chunk = 235 MB and count = 5057
Inserted for ts = 1687993199486 , Size of _hyper_1_34_chunk = 235 MB and count = 5090
Inserted for ts = 1687993199487 , Size of _hyper_1_34_chunk = 235 MB and count = 5123
Inserted for ts = 1687993199488 , Size of _hyper_1_34_chunk = 235 MB and count = 5156
Inserted for ts = 1687993199489 , Size of _hyper_1_34_chunk = 235 MB and count = 5189
Inserted for ts = 1687993199490 , Size of _hyper_1_34_chunk = 235 MB and count = 5222
Inserted for ts = 1687993199491 , Size of _hyper_1_34_chunk = 235 MB and count = 5255
Inserted for ts = 1687993199492 , Size of _hyper_1_34_chunk = 235 MB and count = 5288
Inserted for ts = 1687993199493 , Size of _hyper_1_34_chunk = 235 MB and count = 5321
Inserted for ts = 1687993199494 , Size of _hyper_1_34_chunk = 235 MB and count = 5354
Inserted for ts = 1687993199495 , Size of _hyper_1_34_chunk = 235 MB and count = 5387
Inserted for ts = 1687993199496 , Size of _hyper_1_34_chunk = 235 MB and count = 5420
Inserted for ts = 1687993199497 , Size of _hyper_1_34_chunk = 235 MB and count = 5453
Inserted for ts = 1687993199498 , Size of _hyper_1_34_chunk = 235 MB and count = 5486
Inserted for ts = 1687993199499 , Size of _hyper_1_34_chunk = 235 MB and count = 5519
Inserted for ts = 1687993199500 , Size of _hyper_1_34_chunk = 235 MB and count = 5552

Can you please suggest , on what basis 300 records in this chunk are occupying size of 300MB. And how can we size our database accordingly for future requirements?