9a
{{10.0, -21.83}, {20.0, -10.2}, {30.0, -4.5}, {40.0, -2.0}, {50.0, -0.9}, {60.0, -0.46}, {70.0, -0.25}, {80.0, -0.15}, {90.0, -0.09}, {100.0, -0.06}}
.

0