condition	mean	min	max
4 h after light	7.219810000000001	5.64458	8.79504
8 h after light	10.95075	10.4652	11.4363
12 h after light	20.2119	18.533	21.8908
4 h after dark	31.522599999999997	31.4228	31.6224
8 h after dark	26.03665	25.7258	26.3475
12 h after dark	19.60735	19.1416	20.0731