condition	mean	min	max
0 h after light	9.24344	8.9808	9.50608
4 h after light	10.50068	8.80546	12.1959
8 h after light	15.7178	15.0065	16.4291
4 h after dark	15.002199999999998	12.3638	17.6406
8 h after dark	11.979500000000002	11.2756	12.6834
12 h after dark	10.370075	9.81485	10.9253