condition	mean	min	max
4 h after light	1.45878	0.0	2.91756
8 h after light	6.511035	4.74875	8.27332
12 h after light	9.11719	8.66086	9.57352
4 h after dark	17.160200000000003	16.4017	17.9187
8 h after dark	18.55135	14.5419	22.5608
12 h after dark	17.9509	14.9389	20.9629