condition mean min max 4 h after light 5.003528 3.5458160000000003 6.869333999999999 8 h after light 11.678834333333334 2.66336 24.87777 12 h after light 5.327014666666667 1.6671639999999999 9.279924000000001 16 h after light 4.922881333333334 3.167192 7.135737 4 h after dark 9.576674 7.355464 12.2251 8 h after dark 3.950424 1.534208 8.144179