GDP stands for Gross Domestic Product, and it attempts to show the economic state of the country in a number.
It's a measure of how the economy has grown or contracted over a three month period.
The level of GDP is measured in three ways: the value of the goods and services produced by the economy, the value of goods and services purchased by households and the government, and the income generated in terms of profit and wages.
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There'll be bracing winds and heavy showers this afternoon and expect a wet and windy start on Monday morning.
Carl Edwards and guests look back at the week's events in the latest edition of Newsweek Wales.
A Yellow Warning has been issued by the Met Office as gale force winds and showery rain affect areas across Wales.