condition	mean	min	max
4 h after light	21.37465	20.0739	22.6754
8 h after light	15.987950000000001	15.2952	16.6807
12 h after light	15.1534	14.8577	15.4491
4 h after dark	15.1115	14.7606	15.7247
8 h after dark	22.586466666666666	21.4845	24.4519
12 h after dark	23.83963333333333	22.8786	24.8293