condition	mean	min	max
4 h after light	19041.2	19041.2	19041.2
8 h after light	18462.7	17580.5	19344.9
12 h after light	16013.45	14537.1	17489.8
4 h after dark	11030.8	10909.8	11151.8
8 h after dark	9498.95	8104.3	10893.6
12 h after dark	12574.0	10057.6	15090.4