condition mean min max 0 h after light 0.979767 0.952644 1.00689 4 h after light 1.2934 1.04789 1.53891 8 h after light 0.9804815 0.854123 1.10684 4 h after dark 1.2382849999999999 1.10311 1.37346 8 h after dark 1.35602 1.21202 1.50002 12 h after dark 0.9648255 0.782081 1.14757