condition	mean	min	max
0 h after light	17.75805	17.4506	18.0655
4 h after light	12.426449999999999	11.4596	13.3933
8 h after light	9.144905000000001	9.12898	9.16083
4 h after dark	13.2229	12.6871	13.7587
8 h after dark	15.0519	14.4444	15.6594
12 h after dark	19.5111	19.2863	19.7359