condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.15333333333333335 0.0 0.410718 10 h after light 0.0822915 0.0 0.258434 14 h after light 0.04344 0.0 0.26064 18 h after light 0.106043 0.0 0.407626 2 h after dark 0.19958883333333333 0.0 0.631714