condition mean min max 4 h after light 3.725135 3.33069 4.11958 8 h after light 2.5396900000000002 2.48341 2.59597 12 h after light 1.905615 1.20781 2.60342 4 h after dark 1.34909 1.11465 1.58353 8 h after dark 1.2494640000000001 0.925808 1.57312 12 h after dark 1.63769 1.30208 1.9733