condition mean min max 0 h after light 2.070595 1.9117 2.22949 2 h after light 2.99604 2.71305 3.27903 4 h after light 2.816855 2.34238 3.29133 8 h after light 3.1739100000000002 2.74205 3.60577 12 h after light 8.429829999999999 8.37342 8.48624 2 h after dark 9.10253 8.85648 9.34858 4 h after dark 7.978244999999999 7.89239 8.0641 8 h after dark 5.92405 4.36017 7.48793 12 h after dark 3.02313 2.72085 3.32541