condition mean min max 3 h after light 9.046326666666667 8.06405 10.3961 6 h after light 8.6478 7.1055 11.2082 9 h after light 7.84385 6.69878 9.37002 12 h after light 10.5579875 9.21805 13.9362 3 h after dark 14.9307 14.2377 15.7794 6 h after dark 15.248433333333333 14.5201 16.281 9 h after dark 13.7193 11.4604 15.0734 12 h after dark 14.4503 14.0249 14.8757