condition mean min max 4 h after light 11.1819615 11.014867 11.349056 8 h after light 11.1196205 10.624188 11.615053 12 h after light 10.669166 10.669166 10.669166 4 h after dark 10.8972075 10.669166 11.125249 8 h after dark 10.606333 9.964687 11.247979 12 h after dark 11.912244 11.912244 11.912244