Democratic presidential candidate Pete Buttigieg released 10 years of tax returns Tuesday, posting the forms on his campaign website.

Buttigieg, currently mayor of South Bend, Indiana, released his financial information dating back to 2009 around 2:30 p.m., on peteforamerica.com.

The page includes the following statement: "We believe that candidates for the highest office in the land should be transparent and honest. They should play by the rules, pay their fair share and be held accountable by the voters. That’s why Pete not only released 10 years of tax returns, but also posted them here for you to look through yourself."

The information contained in the tax returns is mostly unremarkable — and particularly so for a presidential candidate.

They reveal most of Buttigieg's income is derived from his job as mayor of South Bend and that he's consistently checked the "yes" box to a question asking if he'd like to donate $3 to a presidential election campaign fund.

The tax returns also reveal he has only a few, small investments and gives, on average, several hundred dollars a year to charities.

In all but one year, Buttigieg appears to have been due a federal refund, which he sometimes applied to the next year's tax liability.

The returns show that Buttigieg and his spouse, Chasten Buttigieg, reported adjusted gross income of $152,643 in 2018. They paid taxes of $20,136, the forms show. It was the first year the couple filed jointly. They were married in June 2018.

In 2017, in addition to his salary as mayor, Buttigieg reported earning $30,000 from writing. It does not say if the income was tied to his book, "Shortest Way Home," which was published earlier this year and became a New York Times bestseller.

His adjusted gross income dropped considerably from 2013 ($116,053) to 2014 ($46,150), the year the Navy reservist took an unpaid seven-month leave from the mayor’s office to serve in Afghanistan. He paid $4,498 in federal taxes that latter year.

Similarly, Buttigieg reported just over $33,824 in gross income in 2010, his returns show. That year, he reported spending $856 on military uniforms and paid $2,657 in taxes. That was the year he made an unsuccessful run for Indiana state treasurer and the year before he ran for what would be his first of two terms as South Bend's mayor.

In the earliest year's return, 2009, when his occupation was listed as "consultant," he had an adjusted gross income of $149,827 and paid $30,363. He filed state tax forms that year in California, Connecticut, Illinois and Indiana.

Buttigieg joins at least nine other Democrats running for president who have released returns so far this year. Several of them also released a decade's worth of returns. Though U.S. Sen. Kamala Harris went back 17 years, U.S. Sen. Amy Klobuchar released 13 years of returns and Washington state Gov. Jay Inslee released 12 years' worth.

President Donald Trump during the 2016 election cycle famously declined to release his tax returns, citing audit-related concerns and breaking with recent precedent among major-party presidential candidates. He echoed that position during the current election cycle just this month.