condition mean min max 4 h after light 1133.4 1133.4 1133.4 8 h after light 1164.25 1031.3 1297.2 12 h after light 1634.35 1396.0 1872.7 4 h after dark 2009.9499999999998 1902.8 2117.1 8 h after dark 2349.75 2288.9 2410.6 12 h after dark 2180.55 1962.2 2398.9