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 0.01895585 0.0 0.0408445 3 h after dark 0.030042633333333332 0.0 0.0901279 6 h after dark 0.014967333333333332 0.0 0.044902 9 h after dark 0.0304544 0.0 0.0582569 12 h after dark 0.0 0.0 0.0