condition mean min max 0 h after light 1403.3600000000001 1382.64 1424.08 4 h after light 1606.13 1596.71 1615.55 8 h after light 1266.625 1204.35 1328.9 4 h after dark 1378.885 1309.98 1447.79 8 h after dark 1365.685 1321.76 1409.61 12 h after dark 1506.065 1439.29 1572.84