condition mean min max 0 h after light 0.973034 0.865778 1.08029 4 h after light 1.082925 1.06511 1.10074 8 h after light 2.9269049999999996 2.92135 2.93246 4 h after dark 3.8272399999999998 3.74882 3.90566 8 h after dark 2.279635 2.19884 2.36043 12 h after dark 0.884935 0.50346 1.26641