condition mean min max 0 h after light 2.09837 1.84289 2.35385 2 h after light 8.56212 7.72784 9.3964 4 h after light 8.074245 7.3065 8.84199 8 h after light 9.15484 8.54925 9.76043 12 h after light 8.58676 8.18279 8.99073 2 h after dark 3.269895 2.82721 3.71258 4 h after dark 2.04805 1.74818 2.34792 8 h after dark 1.9019300000000001 1.44411 2.35975 12 h after dark 2.32245 1.90387 2.74103