| Year | Public Debt | |||
|
| Α) As a percentage of GDP (%) | B) Y-o-y percentage change (%) | C) Absolute figure (at constant prices, ?bn) | D) Y-o-y change as a percentage (%) |
| 1975 | 18.2 | - | 3.9 | - |
| 1976 | 17.7 | −2.7 | 4.6 | 17.9 |
| 1977 | 17.9 | 1.1 | 5.2 | 13.0 |
| 1978 | 23.2 | 29.6 | 7.2 | 38.5 |
| 1979 | 22.7 | −2.2 | 9.7 | 7.9 |
| 1980 | 22.5 | −0.9 | 8.5 | 7.6 |
| 1981 | 26.7 | 18.7 | 11.9 | 40 |
| 1982 | 30.2 | 13.1 | 3.4 | 28.6 |
| 1983 | 34.6 | 14.6 | 17.6 | 15.0 |
| 1984 | 41.3 | 19.4 | 23.4 | 33.0 |
| 1985 | 48.3 | 16.9 | 23.2 | -0.9 |
| 1986 | 50.2 | 3.9 | 25.4 | 9.5 |
| 1987 | 56.4 | 12.4 | 29.1 | 14.6 |
| 1988 | 61.6 | 9.2 | 36.8 | 26.5 |
| 1989 | 64.8 | 5.2 | 42.2 | 14.7 |
| 1990 | 71.7 | 10.6 | 49.5 | 17.3 |
| 1991 | 74.0 | 3.2 | 57.5 | 16.2 |
| 1992 | 79.1 | 6.9 | 64.2 | 11.7 |
| 1993 | 99.2 | 25.4 | 84.9 | 32.2 |
| 1994 | 97.2 | −2.0 | 88.7 | 4.5 |
| 1995 | 97.9 | 0.7 | 95.0 | 7.1 |
| 1996 | 100.3 | 2.5 | 107.7 | 13.4 |
| 1997 | 97.5 | −2.8 | 114.9 | 6.7 |
| 1998 | 95.4 | −2.2 | 115.7 | 0.7 |
| 1999 | 94.9 | −0.5 | 122.3 | 5.7 |
| 2000 | 104.4 | 10.0 | 141.0 | 15.3 |
| 2001 | 104.7 | 0.3 | 151.9 | 7.7 |
| 2002 | 102.6 | −2.0 | 159.2 | 4.8 |
| 2003 | 98.3 | −4.2 | 168.0 | 5.5 |
| 2004 | 99.8 | 1.5 | 183.2 | 9.0 |
| 2005 | 101.2 | 1.4 | 195.4 | 6.7 |
| 2006 | 107.5 | 6.2 | 224.2 | 14.7 |
| 2007 | 107.2 | −0.3 | 15.1 | 6.7 |
| 2008 | 112.9 | 5.3 | 263.3 | 10.0 |
| 2009 | 129.7 | 14.9 | 299.7 | 13.8 |
| 2010 | 148.3 | 14.3 | 329.5 | 9.9 |