condition mean min max 4 h after light 7.71128 6.40456 9.018 8 h after light 9.12846 7.24992 11.007 12 h after light 10.676960000000001 9.71592 11.638 4 h after dark 15.293796666666665 8.17599 19.6774 8 h after dark 9.4268 7.42727 11.6565 12 h after dark 11.663633333333333 10.8653 13.0995