condition	mean	min	max
4 h after light	2159.7	2159.7	2159.7
8 h after light	2088.45	1994.8	2182.1
12 h after light	1886.75	1870.1	1903.4
4 h after dark	2622.75	1959.4	3286.1
8 h after dark	2626.5	2358.7	2894.3
12 h after dark	2076.65	2025.9	2127.4