condition	mean	min	max
4 h after light	8.97504	8.88353	9.06655
8 h after light	11.73605	11.2918	12.1803
12 h after light	10.00143	7.34486	12.658
4 h after dark	17.014	16.7242	17.5639
8 h after dark	18.538966666666667	18.1862	18.8052
12 h after dark	12.7379	10.1578	15.1941