condition	mean	min	max
4 h after light	8.432369999999999	8.02179	8.84295
8 h after light	6.17535	5.93878	6.41192
12 h after light	7.10884	5.57025	8.64743
4 h after dark	18.621000000000002	16.7783	21.8715
8 h after dark	11.079983333333333	5.19445	17.7108
12 h after dark	5.620383333333333	0.0	10.4249