condition mean min max 0 h after light 1.6186699999999998 1.54015 1.69719 4 h after light 1.9438549999999999 1.06296 2.82475 8 h after light 2.08568 2.03812 2.13324 4 h after dark 2.955005 2.73349 3.17652 8 h after dark 2.28424 2.1415 2.42698 12 h after dark 1.7553999999999998 1.20367 2.30713