Final answer:
The question on UK GDP growth from 1950 to 1979 pertains to history, specifically economic history. Accurate details on UK GDP growth for this period were not provided in the reference information, which covers the US GDP from 1980 to 1990;
Step-by-step explanation:
The question about how much the UK GDP rose by between 1950-79 falls into the subject of History given that it's related to economic history and it's likely framed in the context of a history of economics or social studies course at the College level.
Unfortunately, the reference information provided focuses on the United States GDP between 1980-1990 and does not directly answer the question about the UK GDP between 1950-1979. To provide accurate information on the UK GDP for this period, one would have to consult historical economic data from a source such as the Office for National Statistics in the UK or historical economic databases. It is important to distinguish between 'nominal GDP', which is the market value of all final goods and services produced in a country without adjustment for inflation, and 'real GDP', which is adjusted for changes in price or inflation over time.