condition mean min max 3 h after light 7.87152 4.55564 13.8534 7 h after light 10.727085 6.16145 15.7407 11 h after light 12.353525833333334 7.69479 17.5268 2 h after dark 15.047175833333334 8.87256 25.6238 6 h after dark 8.396070833333333 5.06234 13.9333 10 h after dark 7.3977225 4.33679 13.4385