The graph may be correct. However, there is not a concurrent graph with the size of the Federal Government. And what is really alarming the size of the state, city and local governments which have grown many times worse in the last 60 years. There never seems to be enough resources. A whole system built on a debt-based fiat currency. Our currency is negative money. Read the dollar. It tells you it is for all debts. we all live within that framework. Endless commercials for credit scores and more.It is rather easy to decipher what IS on the graph.