Trump boasts the economy is the best it's ever been. Here are 9 charts showing how it's fared compared to the Obama and Bush presidencies.

The unemployment rate measures the share of the labor force that is jobless and it fluctuates depending on economic conditions. But when the economy is healthy and growing, it can be expected to decline.

The Federal Reserve estimates the natural rate of unemployment to range from 4.5% to 5%, which fiscal and monetary policymakers use to project full employment.

The unemployment rate hovered between 4% and 6% for most of the Bush presidency, spiking dramatically during the 2008-09 financial crisis to 7.8% just as he left office in January 2009.

As a result, Obama inherited an economy in free-fall. The unemployment rate peaked at 10.2 percent in October 2009 during the recession and 8.7 million jobs were lost from early 2007 and 2010, according to the Center for Budget and Policy Priorities. But it started falling steadily in 2011 and that trend continued for the rest of the Obama presidency.

President Trump took office as the economy continued its recovery — and as it underwent a decade-long expansion, the longest in American history. The current employment rate stood at 3.7% as of August 2019, the lowest point in a half-century.

Job growth is another key indicator of the economy's health.

During the first few years of the Bush administration, the economy struggled adding jobs. A recession struck in 2001, which lasted eight months and shed jobs at that time. Then it bounced back — and the growth was steady until the 2008 financial crisis when jobs disappeared at a breakneck pace. In January 2009, 808,000 jobs were lost, the low point for this indicator during the Great Recession.

Obama tried stemming those job losses early on in his term, and the economy started stabilizing in 2010. They soon turned into gains — and he averaged out around 109,000 jobs created every month for eight years (when those massive losses at the outset of his presidency are also taken into account.)

Job growth during the Trump presidency has largely matched Obama's, fueled by a strong economy, But the trade wars he's embarked on has started to hurt job creation and businesses pull back on hiring amidst the uncertainty.

Wages rise when unemployment is low and hiring is strong — and that employers are willing to pay more to attract workers.

Wage gains were steady for much of the Bush administration, fluctuating between two and four percent each year.

Then wage growth took a hit during the financial crisis, and gains were anemic for much of the Obama presidency. The Obama economic team referred to it as "the unfinished business" of his time in the Oval Office.

During the Trump presidency, wages have climbed and its now growing at more than 3 percent for the first time in a decade. The GOP tax cuts may have helped accelerate the trend, but economists also point to the tight labor market as a factor.

Median household income measures the average income of middle class families.

Bush's first term saw household's incomes trend downward, but they swung upward until 2007 before declining steeply during the Great Recession.

With the economy in a recession during the first part of the Obama presidency, families experienced a substantial decline in their incomes. However, incomes started recovering in 2012.

That trend has continued during Trump's presidency. By 2018, the average middle-class family saw their income rise to $63,179, according to the Census Bureau.

The S&P 500 measures the stock performance of the 500 largest corporations listed on US exchanges.

The S&P ticked upward for much of the Bush presidency, but took a severe hit during the Great Recession along with the rest of the stock market.

Obama presided over the S&P's steady recovery, which continued through the end of his presidency.

Under Trump, that recovery has swung between gains and losses, brought on by the recent recession scare coupled with the uncertainty stemming from his trade war with China.

The federal deficit is the shortfall between federal revenue and how much the government spends in a fiscal year. When the economy is healthy, the federal deficit is expected to shrink since the government pulls back on spending and has more space to raise taxes.

Bush took over a strong economy from his predecessor, Bill Clinton, with a budget surplus of $128 billion in fiscal year 2001. And it was the last time the US government had a surplus on its hands. The wars in Iraq and Afghanistan, as well as a series of tax cuts, erased it and jacked up the deficit.

Obama ran massive deficits in his 2009 stimulus package to jolt the economy during the Great Recession. Then the next year, he passed an $858 billion tax cut that included an extension of the Bush tax cuts that had similarly ramped up deficits almost a decade before.

Trump has continued running massive deficits during his presidency, which only widened with the passage of the 2017 GOP tax cuts.

The federal debt is the amount of money the federal government owes. And its been on the upswing since the start of the 21st century.

The debt increased steadily under Bush, the result of a costly war on terror and the invasions of Afghanistan and Iraq. According to the Costs of War Project at Brown University, the price tag of the post-9/11 wars totaled $5.9 trillion through fiscal year 2019. The tax cuts he passed also played a role in piling more onto the debt — and it was nearly $10 trillion by the time he left office, double what it was at the start of his presidency.

Obama's stimulus packages also added a substantial amount of money to the debt, though it helped put the nation back on track economically. According to Department of Treasury data and Congressional Budget Office projections, the national debt grew 84% under Obama's watch by the end of fiscal year of 2016 — slightly more than it had under Bush at 75%.

Trump vowed to erase the debt during his presidency, but he's done no such thing and instead has only added to it.

The trade balance calculates a country's exports minus its imports in a given period. When a nation imports more goods than it exports, the result would be a trade deficit.

The Bush administration's trade imbalance increased for much of his two terms in office, partially brought on by additional trading with China as it was integrated into global markets. Then trade decreased sharply during the Great Recession.

The trade balance fluctuated but held steady during the Obama administration. And during Trump era, the deficit started to increase to levels not seen since the Bush administration — despite him vowing to "start whittling it down, and as fast as possible" in 2017. Last year, the trade deficit stood at $891 billion, according to the Bureau of Economic Analysis.

Still, a growing deficit partially means the economy is growing, the result of increased consumer spending that leads to more imports.