condition	mean	min	max
4 h after light	1965.4	1965.4	1965.4
8 h after light	1918.4	1592.5	2244.3
12 h after light	2276.0	1802.7	2749.3
4 h after dark	2391.5	2375.4	2407.6
8 h after dark	1953.15	1852.8	2053.5
12 h after dark	1867.3	1635.5	2099.1