condition mean min max 4 h after light 7.677325 5.87595 9.4787 8 h after light 5.51202 5.2145 5.80954 12 h after light 6.642939999999999 5.98466 7.30122 4 h after dark 10.755154999999998 9.82701 11.6833 8 h after dark 8.885515 8.12781 9.64322 12 h after dark 9.11307 8.44179 9.78435