condition	mean	min	max
4 h after light	12.90475	12.7501	13.0594
8 h after light	13.686250000000001	10.711	16.6615
12 h after light	16.5819	14.0358	19.128
4 h after dark	18.270249999999997	18.0431	18.4974
8 h after dark	21.3831	20.8565	21.9097
12 h after dark	17.6772	16.1457	19.2087