President Obama at his inauguration on Jan. 20, 2009. (AP Photo/Ron Edmonds)

(CNSNews.com) – The federal government passed a fiscal milestone on the first business day of fiscal 2017—which was Monday, Oct. 3—when the total federal debt accumulated during the presidency of Barack Obama topped $9,000,000,000,000 for the first time.

On Jan. 20, 2009, when Obama was inaugurated, the total debt of the federal government was $10,626,877,048,913.08, according to data published by the U.S. Treasury.

As of the close of business on Friday, Sept, 30, the last day of fiscal 2016, the total federal debt was $19,573,444,713,936.79. At that point, the total federal debt had increased under Obama by $8,946,567,665,023.71.

On Monday, Oct. 3, the first business day of fiscal 2017, the total federal debt closed at $19,642,949,742,561.51. At that point, the debt had increased under Obama by $9,016,072,693,648.43 from the $10,626,877,048,913.08 it stood at on the day of Obama’s inauguration.

As of the close of business, on Wednesday, Oct. 5—the latest day for which the Treasury has reported—the total federal debt was $19,663,411,497,797.40. That means that so far in Obama’s presidency, the federal debt has increased $9,036,534,448,884.32.

Given that there were 118,215,000 households in the United States in June (the latest estimate from the Census Bureau), the $9,036,534,448,884.32 increase in the federal debt under Obama so far equals approximately $76,442 per household.

The Treasury divides the total debt into two major parts: "debt held by the public" and "intragovernmental debt." Debt held by the public are U.S. government securities—including bills, notes and bonds—held by individuals and institutions outside the U.S. government. Intragovernmental debt is the money that the Treasury has borrowed and spent out of federal government trust funds such as those for the Social Security program.

According to the Treasury, during Obama’s time in office so far, the "debt held by the public" has climbed from $6,307,310,739,681.66 on Jan, 20, 2009 to $14,170,897,492,757.91 on Oct. 5, 2015. That is an increase of $7,863,586,753,076.25—or about 125 percent.

The amount that President Obama has increased the total federal debt so far--$9,036,534,448,884.32—is $4,137,434,138,275.88 more (or 84 percent more) than President George W. Bush increased the debt during his full eight years in office.

When President George W. Bush took office on Jan. 20, 2001, the total federal debt was $5,727,776,738,304.64. During his eight years as president it increased by $4,899,100,310,608.44 to $10,626,877,048,913.08

It took the United States, which declared independence in 1776, 231 years to accumulate its first $9,000,000,000,000 in debt—with the debt first surpassing that level on the last day of August 2007.

On August 31, 2007, the total federal debt was $9,005,648,561,262.70, Since then it has grown by $10,657,762,936,534.70 (or approximately 118 percent) to the current level of $19,663,411,497,797.40