condition	mean	min	max
0 h after light	6.715485	6.18283	7.24814
4 h after light	4.09665	3.50192	4.69138
8 h after light	16.49045	15.8013	17.1796
4 h after dark	16.756999999999998	13.1006	20.4134
8 h after dark	10.08022	9.40694	10.7535
12 h after dark	4.602215	3.67844	5.52599