condition	mean	min	max
4 h after light	4.43912	3.89806	4.98018
8 h after light	4.917395	4.76492	5.06987
12 h after light	7.18633	7.05024	7.32242
4 h after dark	13.85335	13.4966	14.2101
8 h after dark	9.955185	9.27617	10.6342
12 h after dark	8.89497	8.69693	9.09301