condition	mean	min	max
3 h after light	17.517938333333333	9.32306	29.787
7 h after light	16.7329975	8.39697	29.1951
11 h after light	15.6071825	8.2228	25.1155
2 h after dark	16.3447025	9.80403	26.572
6 h after dark	18.156875	10.2401	31.946
10 h after dark	17.771391666666666	10.2636	27.8216