condition	mean	min	max
0 h after light	17207.25	16088.9	18325.6
2 h after light	18900.6	18666.9	19134.3
4 h after light	17756.1	17587.8	17924.4
8 h after light	16748.8	15251.1	18246.5
12 h after light	16757.699999999997	16561.8	16953.6
2 h after dark	17442.85	16215.2	18670.5
4 h after dark	19518.2	19067.7	19968.7
8 h after dark	17468.35	16921.9	18014.8
12 h after dark	15695.8	15122.2	16269.4