condition	mean	min	max
4 h after light	1101.9	1101.9	1101.9
8 h after light	558.4	420.8	696.0
12 h after light	510.3	496.6	524.0
4 h after dark	448.7	271.0	626.4
8 h after dark	570.2	461.6	678.8
12 h after dark	685.0	645.8	724.2