| Year | National Debt (billions) | % Change On Prev Year ie rate of increase/decrease | National Debt %of GDP | % Change On Prev Year ie rate of increase/decrease | Public Spending Billions | % Change On Prev Year ie rate of increase/decrease | Public Spending % of GDP | % Change On Prev Year ie rate of increase/decrease |
| 1979 | 86.88 | 9.72% | 43.61 | -6.74% | 85.17 | 18.37% | 42.75 | 0.61% |
| 1997 | 348 | 8.04% | 41.93 | 1.77% | 308.37 | 1.33% | 37.15 | -4.57% |
| 2001 | 312.4 | -9.55% | 30.58 | -13.57% | 366.09 | 7.42% | 35.83 | 2.64% |
| 2008 | 525 | 5.00% | 36.61 | 2.92% | 582.23 | 5.98% | 40.61 | 3.92% |
| 2010 | 759.5 | 23.12% | 52.08 | 17.67% | 673.1 | 6.20% | 46.15 | 1.50% |
| 2015 | 1355 | 7.71% | 78.76 | 2.74% | 731.36 | 2.44% | 42.51 | -2.30% |