condition	mean	min	max
0 h after light	13.9162	13.1366	14.6958
4 h after light	16.043	13.3614	18.7246
8 h after light	20.1694	18.6418	21.697
4 h after dark	20.2468	19.9844	20.5092
8 h after dark	17.560299999999998	15.8096	19.311
12 h after dark	16.38375	13.7729	18.9946