condition	mean	min	max
4 h after light	2451.8	2451.8	2451.8
8 h after light	2238.4	1939.5	2537.3
12 h after light	2063.3	1967.7	2158.9
4 h after dark	2438.5	1935.2	2941.8
8 h after dark	2428.45	2287.5	2569.4
12 h after dark	2538.5	2494.5	2582.5