condition mean min max 4 h after light 1035.9473333333333 578.102 1280.31 8 h after light 1140.8700000000001 452.54 1501.63 12 h after light 1077.4903333333334 730.781 1294.92 4 h after dark 1959.1 1140.32 2549.78 8 h after dark 1591.0 1065.53 2249.2 12 h after dark 2330.07 1811.17 2785.98