condition mean min max 3 h after light 2.14769 1.65315 2.52518 6 h after light 1.7274233333333333 1.22413 2.09459 9 h after light 1.9693276666666666 0.967023 2.68826 12 h after light 4.1143875 2.90687 6.53332 3 h after dark 10.419846666666666 6.87714 12.7335 6 h after dark 21.1791 17.2948 24.2605 9 h after dark 22.435000000000002 18.8518 28.344 12 h after dark 13.107199999999999 11.9187 14.2957