condition mean min max 4 h after light 0.800951 0.482622 1.11928 8 h after light 0.630827 0.305585 0.956069 12 h after light 1.303855 1.12218 1.48553 4 h after dark 0.7947003333333333 0.524225 1.32078 8 h after dark 0.23823133333333332 0.124388 0.372649 12 h after dark 1.0188683333333333 0.868391 1.29249