condition mean min max 0 h after light 0.8511805 0.536931 1.16543 4 h after light 0.969878 0.617616 1.32214 8 h after light 1.435115 1.32086 1.54937 4 h after dark 0.85935 0.48339 1.23531 8 h after dark 1.3038939999999999 0.933218 1.67457 12 h after dark 1.038885 1.00535 1.07242