condition mean min max 4 h after light 1441.854 1346.5739999999998 1514.162 8 h after light 1512.0670333333333 969.9411 2130.8779999999997 12 h after light 1280.5574333333334 932.0113 1719.7060000000001 16 h after light 1927.5156666666667 1579.2820000000002 2514.603 4 h after dark 1755.9403333333335 1634.537 1971.9620000000002 8 h after dark 1190.3773999999999 917.0522 1407.4129999999998