condition	mean	min	max
4 h after light	2541.0	2541.0	2541.0
8 h after light	2285.35	2153.5	2417.2
12 h after light	2176.0	1983.1	2368.9
4 h after dark	1357.35	822.2	1892.5
8 h after dark	1172.35	728.3	1616.4
12 h after dark	1603.05	1398.5	1807.6