condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.026031466666666666 0.0 0.0780944 9 h after light 0.0 0.0 0.0 12 h after light 0.0297587 0.0 0.0892761 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0