condition	mean	min	max
4 h after light	1033.8	1033.8	1033.8
8 h after light	957.8	927.0	988.6
12 h after light	887.35	839.1	935.6
4 h after dark	1196.3	961.4	1431.2
8 h after dark	1376.5	1162.8	1590.2
12 h after dark	1503.0	1444.4	1561.6