condition mean min max 0 h after light 4.08188 3.49519 4.66857 4 h after light 18.850700000000003 18.3119 19.3895 8 h after light 52.43845 45.0072 59.8697 4 h after dark 19.625149999999998 17.9264 21.3239 8 h after dark 9.99123 8.79706 11.1854 12 h after dark 5.551775 4.654 6.44955