condition	mean	min	max
0 h after light	7.5768699999999995	7.10798	8.04576
4 h after light	20.168300000000002	18.8669	21.4697
8 h after light	10.177019999999999	8.97354	11.3805
4 h after dark	4.39131	3.90659	4.87603
8 h after dark	8.40146	7.94091	8.86201
12 h after dark	4.456519999999999	4.18706	4.72598