condition mean min max 4 h after light 1443.3172220000001 1186.583333 1789.083333 8 h after light 789.8794444333333 609.095 1014.01 12 h after light 511.91444443333336 372.02 636.11 1.5 h after dark 549.1533333333333 454.97 654.85 5.5 h after dark 972.902222 850.99 1059.893333 9.5 h after dark 1412.3933333333334 1246.52 1502.71