condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 4.341033333333333 3.91937 4.67507 9 h after light 7.065656666666667 0.0 17.5133 12 h after light 3.2525 0.0 9.7575 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 1.4438466666666667 0.0 4.33154 12 h after dark 0.0 0.0 0.0