Gross domestic product (GDP) is defined as the value of all goods and services produced less the value of any goods or services used in their creation. For measuring the growth rate of GDP in terms of volumes, the GDP at current prices are valued in the prices of the previous year and the thus computed volume changes are imposed on the level of a reference year; this is called a chain-linked series. Doing so, price movements will not inflate the growth rate. Expessed as percentage change on the previous period and as percentage change on the previous period per capita.