condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.34079550000000003 0.186589 0.495002 4 h after dark 14.0497 13.2645 14.8349 8 h after dark 2.56051 1.98871 3.13231 12 h after dark 0.5673825 0.321843 0.812922