condition	mean	min	max
4 h after light	16.8706	15.0598	18.6814
8 h after light	20.08125	19.071	21.0915
12 h after light	14.83945	12.2151	17.4638
4 h after dark	28.446733333333334	26.2111	31.0542
8 h after dark	36.29023333333333	34.3913	38.9409
12 h after dark	24.58353333333333	22.5103	25.9074