timestamp,value_a,value_b
2025-01-01 00:00:00,50,200
2025-01-01 01:00:00,52,198
2025-01-01 02:00:00,51,201
2025-01-01 03:00:00,55,203
2025-01-01 04:00:00,57,205
2025-01-01 05:00:00,58,207
2025-01-01 06:00:00,56,210
2025-01-01 07:00:00,60,212
2025-01-01 08:00:00,62,214
2025-01-01 09:00:00,61,216
2025-01-01 10:00:00,63,218
2025-01-01 11:00:00,65,220
2025-01-01 12:00:00,66,221
2025-01-01 13:00:00,64,223
2025-01-01 14:00:00,67,224
2025-01-01 15:00:00,69,226
2025-01-01 16:00:00,70,227
2025-01-01 17:00:00,71,229
2025-01-01 18:00:00,72,230
2025-01-01 19:00:00,73,232
2025-01-01 20:00:00,74,233
2025-01-01 21:00:00,75,235
2025-01-01 22:00:00,76,236
2025-01-01 23:00:00,77,238