Table 1 shows selected macroeconomic data for an open economy with a government sector for 2028 and 2029.
| Macroeconomic Component | 2028 (€bn) | 2029 (€bn) |
|---|---|---|
| Export revenue (XXX) | 140 | 160 |
| Government spending (GGG) | 180 | 165 |
| Investment (III) | 110 | 125 |
The country's national income was in macroeconomic equilibrium in both 2028 and 2029. All other things being equal, which one of the following is most likely to have occurred in this country in 2029 to maintain this equilibrium?
A fall in the total value of imports
A reduction in national tax revenues
A decrease in household savings
A rise in national tax revenues