condition	mean	min	max
4 h after light	1825.3	1825.3	1825.3
8 h after light	1927.15	1665.8	2188.5
12 h after light	1778.05	1665.1	1891.0
4 h after dark	1667.55	1611.5	1723.6
8 h after dark	1615.0	1485.7	1744.3
12 h after dark	1965.65	1934.5	1996.8