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.
More top news
A cloudy night for most of us, with patchy rain, drizzle and mist at times, largely confined to the south overnight.
The second nominee is Suzanne Edwards from Merthyr Tydfil, whose fundraising idea helped a little girl with cancer get treatment.
A pathologist has said that 18-month old Elsie Scully-Hicks died from bleeding on the brain caused by a blunt head injury.