condition	mean	min	max
4 h after light	8.405855	7.7099	9.10181
8 h after light	11.45025	11.2339	11.6666
12 h after light	35.343199999999996	33.4098	37.2766
4 h after dark	40.891933333333334	39.4106	43.3176
8 h after dark	35.46006666666666	28.833	39.2155
12 h after dark	15.4648	14.5411	16.181