condition	mean	min	max
4 h after light	8.37231	7.41055	9.33407
8 h after light	5.850195	4.12239	7.578
12 h after light	8.960185	7.96655	9.95382
4 h after dark	13.565733333333334	12.7216	15.0192
8 h after dark	15.352400000000001	13.5746	17.6488
12 h after dark	11.084233333333334	7.9479	15.2353