condition	mean	min	max
4 h after light	4.400565	3.79301	5.00812
8 h after light	2.5828949999999997	2.36273	2.80306
12 h after light	4.13527	3.98528	4.28526
4 h after dark	6.17943	6.07098	6.28788
8 h after dark	6.568054999999999	6.21538	6.92073
12 h after dark	6.04863	5.70884	6.38842