condition mean min max 4 h after light 57877.85277666667 50830.68 63498.93333 8 h after light 57089.771113333336 52019.89667 62659.38667 12 h after light 51347.16111 41217.87333 57211.15333 1.5 h after dark 34865.50555666667 25854.52667 51112.71667 5.5 h after dark 15134.17 13620.51 17719.43 9.5 h after dark 26814.832223333335 18242.19667 36313.21