condition mean min max 0 h after light 1.6448800000000001 1.20839 2.08137 2 h after light 1.3404699999999998 1.28883 1.39211 4 h after light 1.7521749999999998 1.53985 1.9645 8 h after light 2.2102399999999998 1.87191 2.54857 12 h after light 2.912985 2.79139 3.03458 2 h after dark 3.541985 3.29674 3.78723 4 h after dark 3.01762 2.96161 3.07363 8 h after dark 2.701425 2.65035 2.7525 12 h after dark 1.953665 1.61236 2.29497