condition	mean	min	max
4 h after light	1553.7	1553.7	1553.7
8 h after light	1410.8	1338.3	1483.3
12 h after light	1318.65	1263.2	1374.1
4 h after dark	1560.8	1209.0	1912.6
8 h after dark	1730.05	1589.1	1871.0
12 h after dark	1521.45	1455.0	1587.9