condition	mean	min	max
4 h after light	9.726895	7.64389	11.8099
8 h after light	9.167	9.09559	9.23841
12 h after light	13.79565	13.051	14.5403
4 h after dark	17.5879	17.4185	17.7573
8 h after dark	18.03665	17.3199	18.7534
12 h after dark	14.87845	14.7122	15.0447