condition	mean	min	max
4 h after light	1691.4	1691.4	1691.4
8 h after light	2005.7	1802.5	2208.9
12 h after light	2619.05	2384.7	2853.4
4 h after dark	2497.55	1965.6	3029.5
8 h after dark	1938.45	1432.4	2444.5
12 h after dark	1394.95	1176.2	1613.7