condition	mean	min	max
0 h after light	34481.35	34283.1	34679.6
4 h after light	28413.85	27485.9	29341.8
8 h after light	24121.45	23911.2	24331.7
4 h after dark	34536.2	33823.3	35249.1
8 h after dark	35685.45	35174.9	36196.0
12 h after dark	35724.45	35455.7	35993.2