condition	mean	min	max
4 h after light	10.9	10.9	10.9
8 h after light	18.95	16.4	21.5
12 h after light	17.4	16.1	18.7
4 h after dark	7.6000000000000005	4.4	10.8
8 h after dark	19.8	18.0	21.6
12 h after dark	6.2	5.7	6.7