condition	mean	min	max
0 h after light	9.23998	9.15388	9.32608
4 h after light	8.41403	7.98975	8.83831
8 h after light	7.685905	7.45712	7.91469
4 h after dark	10.183005	9.60151	10.7645
8 h after dark	11.52735	11.3321	11.7226
12 h after dark	9.31731	9.22112	9.4135