Graphing The United Kingdom's Economy Under Margaret Thatcher: Click to Enlarge Graphs
GDP is a measure of economic performance, which grew during most of the Thatcher years.
While inflation decreased and stabilized during the Thatcher years, unemployment increased.
The Gini index measures income distribution, and is used to measure inequality. A perfectly equal society would have a coefficient of 0. Inequality during the Thatcher years increased a lot.