condition	mean	min	max
4 h after light	754.8	754.8	754.8
8 h after light	588.95	544.7	633.2
12 h after light	336.6	18.2	655.0
4 h after dark	72.25	50.3	94.2
8 h after dark	77.65	71.7	83.6
12 h after dark	33.25	29.3	37.2