condition	mean	min	max
4 h after light	2197.5	2197.5	2197.5
8 h after light	2172.95	2073.6	2272.3
12 h after light	1989.65	1890.7	2088.6
4 h after dark	2186.9	2033.0	2340.8
8 h after dark	2543.35	2504.2	2582.5
12 h after dark	2382.95	2306.8	2459.1