condition mean min max 4 h after light 219.1171445 206.6346 231.599689 8 h after light 243.466411 188.469996 298.462826 12 h after light 395.643462 386.341062 404.945862 4 h after dark 268.96271249999995 185.332925 352.5925 8 h after dark 337.81493 167.48391 508.14595 12 h after dark 219.00384 219.00384 219.00384