condition	mean	min	max
4 h after light	615.0	615.0	615.0
8 h after light	612.65	589.8	635.5
12 h after light	557.05	554.7	559.4
4 h after dark	557.9	458.8	657.0
8 h after dark	544.65	515.5	573.8
12 h after dark	517.1500000000001	494.6	539.7