To find the years in which there was a budget surplus, we need to compare the revenue and expenditure for each year. A budget surplus occurs when the revenue exceeds the expenditure. Let's analyze each year one by one:
1. Year 2001:
- Revenue: \[tex]$8 trillion
- Expenditure: \$[/tex]6 trillion
- [tex]\( 8 > 6 \)[/tex]
- Result: Surplus
2. Year 2002:
- Revenue: \[tex]$5 trillion
- Expenditure: \$[/tex]7 trillion
- [tex]\( 5 < 7 \)[/tex]
- Result: Deficit
3. Year 2003:
- Revenue: \[tex]$8 trillion
- Expenditure: \$[/tex]10 trillion
- [tex]\( 8 < 10 \)[/tex]
- Result: Deficit
4. Year 2004:
- Revenue: \[tex]$9 trillion
- Expenditure: \$[/tex]7 trillion
- [tex]\( 9 > 7 \)[/tex]
- Result: Surplus
5. Year 2005:
- Revenue: \[tex]$15 trillion
- Expenditure: \$[/tex]18 trillion
- [tex]\( 15 < 18 \)[/tex]
- Result: Deficit
6. Year 2006:
- Revenue: \[tex]$8 trillion
- Expenditure: \$[/tex]10 trillion
- [tex]\( 8 < 10 \)[/tex]
- Result: Deficit
7. Year 2007:
- Revenue: \[tex]$6 trillion
- Expenditure: \$[/tex]4 trillion
- [tex]\( 6 > 4 \)[/tex]
- Result: Surplus
8. Year 2008:
- Revenue: \[tex]$2 trillion
- Expenditure: \$[/tex]4 trillion
- [tex]\( 2 < 4 \)[/tex]
- Result: Deficit
9. Year 2009:
- Revenue: \[tex]$7 trillion
- Expenditure: \$[/tex]4 trillion
- [tex]\( 7 > 4 \)[/tex]
- Result: Surplus
10. Year 2010:
- Revenue: \[tex]$5 trillion
- Expenditure: \$[/tex]9 trillion
- [tex]\( 5 < 9 \)[/tex]
- Result: Deficit
Based on this analysis, the years with a budget surplus are:
- 2001
- 2004
- 2007
- 2009
Thus, the years in which there was a budget surplus are 2001, 2004, 2007, and 2009.
