condition	mean	min	max
4 h after light	1810.8	1810.8	1810.8
8 h after light	1810.65	1661.8	1959.5
12 h after light	1819.5	1610.5	2028.5
4 h after dark	2054.45	1900.3	2208.6
8 h after dark	1995.5	1970.3	2020.7
12 h after dark	1820.95	1638.5	2003.4