condition	mean	min	max
0 h after light	19.105800000000002	18.7677	19.4439
4 h after light	9.02486	8.82593	9.22379
8 h after light	7.146915	7.06885	7.22498
4 h after dark	14.1229	11.7041	16.5417
8 h after dark	12.110865	9.99223	14.2295
12 h after dark	20.15705	15.827	24.4871