condition	mean	min	max
0 h after light	8.389769999999999	8.08207	8.69747
4 h after light	4.71748	3.85734	5.57762
8 h after light	8.036975	6.47632	9.59763
4 h after dark	16.7285	16.1029	17.3541
8 h after dark	10.5837	10.5387	10.6287
12 h after dark	8.722795000000001	6.98179	10.4638