condition	mean	min	max
0 h after light	7.6902800000000004	6.63959	8.74097
4 h after light	5.72996	5.58757	5.87235
8 h after light	5.20035	4.88889	5.51181
4 h after dark	11.48275	10.5129	12.4526
8 h after dark	11.58485	10.3985	12.7712
12 h after dark	6.533195	5.37183	7.69456