condition	mean	min	max
0 h after light	19.82405	18.085	21.5631
4 h after light	19.417650000000002	19.2704	19.5649
8 h after light	14.84875	14.5294	15.1681
4 h after dark	16.353099999999998	15.2574	17.4488
8 h after dark	21.32855	20.7431	21.914
12 h after dark	21.06405	19.7354	22.3927