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 0.023390033333333334 0.0 0.0430225 12 h after light 0.008712833333333333 0.0 0.0261385 3 h after dark 0.053451099999999994 0.0 0.120664 6 h after dark 0.04420053333333333 0.0 0.076077 9 h after dark 0.040556 0.0 0.121668 12 h after dark 0.02516746666666667 0.0 0.0443315