condition mean min max 4 h after light 11.5370265 10.978544 12.095509 8 h after light 10.901628500000001 10.618112 11.185145 12 h after light 12.0170195 11.209898 12.824141 4 h after dark 12.580451499999999 10.430829 14.730074 8 h after dark 11.860062500000002 11.670576 12.049549 12 h after dark 10.471861 10.471861 10.471861