condition	mean	min	max
4 h after light	4.34895	4.07739	4.62051
8 h after light	4.66078	3.19057	6.13099
12 h after light	6.58995	6.43802	6.74188
4 h after dark	7.82357	6.91027	8.73687
8 h after dark	9.493945	9.41502	9.57287
12 h after dark	7.34731	6.57521	8.11941