condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.04925545 0.0 0.0934036 3 h after dark 0.0452853 0.0 0.0756862 6 h after dark 0.0286979 0.0 0.0860937 9 h after dark 0.0 0.0 0.0 12 h after dark 0.04639545 0.0 0.0927909