condition mean min max 4 h after light 4.982575000000001 3.97532 5.98983 8 h after light 1.99277 1.90862 2.07692 12 h after light 2.5435499999999998 2.319 2.7681 4 h after dark 2.68886 2.06689 3.31083 8 h after dark 3.372555 2.15055 4.59456 12 h after dark 3.821955 3.51815 4.12576