condition	mean	min	max
4 h after light	1987.5	1987.5	1987.5
8 h after light	2196.85	2090.6	2303.1
12 h after light	2192.4	2074.8	2310.0
4 h after dark	2023.15	1930.8	2115.5
8 h after dark	1948.6	1899.1	1998.1
12 h after dark	1761.75	1730.0	1793.5