condition	mean	min	max
4 h after light	21.989800000000002	19.0252	24.9544
8 h after light	20.35695	20.3441	20.3698
12 h after light	17.8283	15.8748	19.7818
4 h after dark	21.7107	20.8993	22.2048
8 h after dark	22.7959	21.5764	24.0379
12 h after dark	21.9486	20.4946	24.0312