condition mean min max 4 h after light 1371.1613333333332 1286.607 1432.4479999999999 8 h after light 1143.4749 904.3817 1329.596 12 h after light 1023.0284666666666 815.7094 1249.685 16 h after light 1463.219 1243.871 1777.3470000000002 4 h after dark 1644.5996666666667 1612.2079999999999 1702.714 8 h after dark 1094.8049333333333 910.0638 1206.921