condition mean min max 2 h after light 4.245041166666667 0.441163 15.1412 6 h after light 4.764725 1.80566 8.97531 10 h after light 2.880056833333333 0.921231 6.87568 14 h after light 1.9975486666666666 0.842372 2.97966 18 h after light 2.033881 0.497962 5.60832 2 h after dark 0.49418525 0.0785554 1.49337