condition	mean	min	max
3 h after light	9.1953575	5.7573	13.6159
7 h after light	11.732719166666666	6.91942	14.6906
11 h after light	15.35955	12.2362	19.9744
2 h after dark	17.620125	10.0841	22.6822
6 h after dark	18.263925	11.8075	28.7175
10 h after dark	13.220516666666667	6.88846	19.5557