condition	mean	min	max
4 h after light	14.414850000000001	13.5913	15.2384
8 h after light	7.509510000000001	6.65858	8.36044
12 h after light	7.3541	6.0677	8.6405
4 h after dark	14.093350000000001	13.9708	14.2159
8 h after dark	18.04275	14.4167	21.6688
12 h after dark	18.8125	18.5567	19.0683