condition mean min max 0 h after light 0.838879 0.469168 1.20859 4 h after light 4.005935 3.43627 4.5756 8 h after light 2.34864 1.97857 2.71871 4 h after dark 0.663825 0.394957 0.932693 8 h after dark 0.7621785000000001 0.732233 0.792124 12 h after dark 1.38739 1.13788 1.6369