condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.307133 0.262683 0.351583 4 h after light 0.1167705 0.114674 0.118867 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0