condition mean min max 0 h after light 7.1867 7.08988 7.28352 2 h after light 5.764265 5.47905 6.04948 4 h after light 4.04823 3.73299 4.36347 8 h after light 6.01405 5.7103 6.3178 12 h after light 11.92395 11.8851 11.9628 2 h after dark 11.303899999999999 10.6359 11.9719 4 h after dark 9.443855 8.13821 10.7495 8 h after dark 9.766694999999999 9.25039 10.283 12 h after dark 6.87936 6.31393 7.44479