condition	mean	min	max
2 h after light	17.91645	17.1957	18.9409
6 h after light	13.663716666666666	10.6258	15.5825
10 h after light	15.08525	11.5014	17.8578
14 h after light	16.44215	14.694	19.4949
18 h after light	16.962316666666666	14.919	18.198
2 h after dark	19.8485	15.2911	22.2147