condition mean min max 4 h after light 2.320515 1.11365 3.52738 8 h after light 10.325025 8.69895 11.9511 12 h after light 14.7689 14.5961 14.9417 4 h after dark 11.796800000000001 11.1133 12.4803 8 h after dark 6.29253 5.55933 7.02573 12 h after dark 5.883005 5.19949 6.56652