condition	mean	min	max
4 h after light	1667.9	1667.9	1667.9
8 h after light	1663.25	1654.2	1672.3
12 h after light	1517.3000000000002	1345.4	1689.2
4 h after dark	1317.75	1278.1	1357.4
8 h after dark	1354.45	1239.5	1469.4
12 h after dark	1338.65	1237.4	1439.9