condition mean min max 4 h after light 25497.824443333335 20196.61 33113.1 8 h after light 30813.477776666667 23273.76333 36442.84 12 h after light 25867.57111 21636.19333 29416.64333 1.5 h after dark 17501.20111 12329.73667 22742.09333 5.5 h after dark 15229.003333333334 13321.52667 16648.40333 9.5 h after dark 17128.92778 13026.31667 20260.84