condition mean min max 4 h after light 11.948023 9.3828 14.513246 8 h after light 9.743596499999999 8.864208 10.622985 12 h after light 10.183670500000002 10.141265 10.226076 4 h after dark 10.134419999999999 8.558321 11.710519 8 h after dark 9.2382275 8.749972 9.726483 12 h after dark 9.110035 9.110035 9.110035