condition mean min max 4 h after light 3.124755 2.35384 3.89567 8 h after light 0.9609115 0.842063 1.07976 12 h after light 1.779985 1.02335 2.53662 4 h after dark 2.87491 2.04172 3.44833 8 h after dark 3.1760666666666664 2.02169 5.06244 12 h after dark 2.825466666666667 1.23791 4.22743