The debt is not indexed to inflation or GDP. So, 13.3 Trillion * 3% = ~400Billion per year so an 400B "increase" would represent zero increase in inflation adjusted debt.
In other words if the debt increased 0$ in a given year we would have effectively paid off ~3% of it.
PS: The actual increase in debt over the last few years has still been ridiculously fast. Defense-related expenditures outside of the Department of Defense constitute between $216 billion and $361 billion in additional spending, bringing the total for defense spending to between $880 billion and $1.03 trillion in fiscal year 2010.[7] (http://en.wikipedia.org/wiki/Military_budget_of_the_United_S...) Basicly we are putting the entire DoD budget on Credit Cards.
In other words if the debt increased 0$ in a given year we would have effectively paid off ~3% of it.
PS: The actual increase in debt over the last few years has still been ridiculously fast. Defense-related expenditures outside of the Department of Defense constitute between $216 billion and $361 billion in additional spending, bringing the total for defense spending to between $880 billion and $1.03 trillion in fiscal year 2010.[7] (http://en.wikipedia.org/wiki/Military_budget_of_the_United_S...) Basicly we are putting the entire DoD budget on Credit Cards.