condition	mean	min	max
4 h after light	9.76756	8.57052	10.9646
8 h after light	8.586034999999999	8.28525	8.88682
12 h after light	19.950499999999998	18.2683	21.6327
4 h after dark	32.58605	29.2139	35.9582
8 h after dark	22.1377	21.5887	22.6867
12 h after dark	16.50495	15.6779	17.332