condition	mean	min	max
4 h after light	1934.2	1934.2	1934.2
8 h after light	1630.05	1616.8	1643.3
12 h after light	1471.4	1430.3	1512.5
4 h after dark	1240.4	978.9	1501.9
8 h after dark	1039.5	961.9	1117.1
12 h after dark	1114.95	1009.0	1220.9