Explanation of terms
Gross Domestic Product (GDP) is a measure of value added in domestic production.
GDP per capita is often used as an estimate of the level of prosperity of a country
The disposable Gross National Income (dGNI)

is calculated by adding net foreign income to GDP

The saving rate is savings as a proportion of the disposable Gross National Income
Total consumption
is the difference between the disposable Gross National Income and the total savings