condition	mean	min	max
4 h after light	1780.7	1780.7	1780.7
8 h after light	1694.15	1593.5	1794.8
12 h after light	1759.75	1703.9	1815.6
4 h after dark	1849.55	1668.5	2030.6
8 h after dark	1845.1	1839.6	1850.6
12 h after dark	2017.2	1902.9	2131.5