What happened the last time UK debt hit 100%? I don't remember the 1960s as being particularly tough times for the UK, other than the IRA bombings.<p>Edit:<p>> Considered by conventional macroeconomic metrics, the 1960s can claim to be one of the UK’s most economically successful decades. GDP growth averaged 3.5%, unemployment 2.7% and inflation 3.5%. Real disposable household income per head was 25% greater by the end of the 1960s than it was at the end of the 1950s. However, such figures fail to take account of the trajectory of developments over the course of the decade, which tended largely in a negative direction. As well as slowing growth in real disposable household incomes and the declining profitability of industry, this trajectory can also be seen with respect to inflation and unemployment. As can be seen in table 3, inflation and the unemployment rate began the decade at 1.0% and 2.1% respectively, but gradually ratcheted up with every stop-go cycle. By 1969 inflation was 5.4% and unemployment 3.5%, a post-war high.<p>From <a href="https://lordslibrary.parliament.uk/the-uk-economy-in-the-1960s/" rel="nofollow">https://lordslibrary.parliament.uk/the-uk-economy-in-the-196...</a>