condition	mean	min	max
0 h after light	7.99692	7.60131	8.39253
4 h after light	14.77135	14.0554	15.4873
8 h after light	17.564999999999998	16.7472	18.3828
4 h after dark	14.338550000000001	13.7163	14.9608
8 h after dark	13.81605	13.5307	14.1014
12 h after dark	11.3564	10.134	12.5788