condition	mean	min	max
0 h after light	8.964324999999999	8.19756	9.73109
4 h after light	13.5332	12.7343	14.3321
8 h after light	16.44425	16.4344	16.4541
4 h after dark	19.15135	18.7974	19.5053
8 h after dark	16.6635	15.771	17.556
12 h after dark	11.555685	9.62967	13.4817