condition	mean	min	max
0 h after light	20.39945	20.2488	20.5501
4 h after light	15.2746	12.7833	17.7659
8 h after light	38.29885	36.3803	40.2174
4 h after dark	44.09325	37.7183	50.4682
8 h after dark	35.25875	33.9602	36.5573
12 h after dark	20.3947	18.0667	22.7227