condition	mean	min	max
0 h after light	20.59365	19.6448	21.5425
4 h after light	10.37706	9.96332	10.7908
8 h after light	9.771840000000001	9.54599	9.99769
4 h after dark	10.303975	9.44835	11.1596
8 h after dark	12.63665	11.7041	13.5692
12 h after dark	15.799949999999999	13.031	18.5689