In response to the pandemic, the U.S. Government initially sent $2T of stimulus into the economy. Nearly a year later, they’re readying another set of relief money. Everything from direct payments to workers, guaranteed loans to small businesses, and unemployment benefits are on the table. All the activity from the first bill has been adding to the national debt, which as our latest visual illustrates, has been exploding for years. And this next bill could accelerate the move. You can check out the U.S. debt clock in real-time here.

• For the first 50 years in our visual from 1929 until 1979, the U.S. national debt only grew gradually. It was just $16B in 1929 or about 16% of GDP, rising to $827B or 31% of GDP in 1979.
• Debt levels started to explode during the 1980s and 1990s, rising from $908B when Volcker raised the Fed rate to 20% to tame inflation to $5.6T when the Glass-Steagall Act was repealed in 1999.
• In the late 1990s, the growth of the national debt slowed down. The U.S. government actually ran a surplus in 2000, and the debt decreased as a percentage of GDP from 65% in 1995 to 55% in 2001.

• The U.S. debt resumed its skyrocketing trajectory with the War on Terror, the Great Recession, and now the Coronavirus crisis. It already hit 127% of GDP in Q3 of 2020 and is projected to double to 202% by 2051.

We gathered figures for the national debt and a list of relevant events from The Balance and the U.S. Treasury, which adjusted debt figures for inflation. We added a color-coded schema making it easier to tell every time the country adds another $6T to the debt. Another way to think about national debt is to compare it to the size of the economy. A country with a small economy can’t afford to rack up as much debt as a large one.

Taking the long view of history illustrates how the national debt wasn’t always so enormous. It was less than $40B throughout the entire Great Depression, and it only started to rise when the U.S. entered World War II and ramped up spending to support the military. In fact, the debt topped $269B or 119% of GDP in 1946, the highest ever when measured as a percentage of GDP. As the country recovered from World War II, the debt-to-GDP ratio actually declined even as the overall debt slowly marched upward. Debt-to-GDP was as low as 32% when Nixon ended the gold standard, or $458B.

But then the national debt started to explode in the 1980s, rising in short order from $908B in 1980 to $3.2T by the end of the decade. The inexorable rising national debt didn’t slow until the late 1990s, and the country actually ran a surplus in 2000. Over the next two decades, the country saw one crisis after another. The terror attacks on 9/11, the Iraq War and the global financial crisis all required extensive government spending. And now the government is poised to add another couple trillion to the debt due to the coronavirus crisis. President Trump entered office promising to eliminate the deficit, but he may be overseeing the largest deficit ever at $4T. Of course, the size of the debt depends on the extent the coronavirus damages the economy and whether Congress passes yet another round of stimulus, so the final numbers remain to be seen. President Trump entered office promising to eliminate the deficit, but he oversaw the largest U.S. deficit ever at $3.1T. Although high, this was below some initial projections as the economy improved towards the end of 2020.