condition mean min max 0 h after light 0.053729 0.0 0.107458 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0515435 0.0 0.103087 12 h after light 0.0284856 0.0 0.0569712 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0479697 0.0 0.0959394 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0