condition mean min max 0 h after light 0.751039 0.669909 0.832169 4 h after light 0.896992 0.737194 1.05679 8 h after light 2.44512 2.32747 2.56277 4 h after dark 2.4328250000000002 1.84064 3.02501 8 h after dark 1.810915 1.74806 1.87377 12 h after dark 1.002729 0.734898 1.27056