condition	mean	min	max
4 h after light	1587.9	1587.9	1587.9
8 h after light	1329.4	1244.8	1414.0
12 h after light	927.8499999999999	796.6	1059.1
4 h after dark	692.25	613.8	770.7
8 h after dark	605.4	600.8	610.0
12 h after dark	595.55	522.0	669.1