condition mean min max 4 h after light 2.7976099999999997 2.7161 2.87912 8 h after light 4.386645 4.3262 4.44709 12 h after light 7.34769 6.25911 8.43627 4 h after dark 6.25391 5.57753 6.99764 8 h after dark 4.911816666666667 4.58204 5.17944 12 h after dark 5.569640000000001 5.4351 5.73094