Sen. Amy Klobuchar Amy KlobucharSocial media platforms put muscle into National Voter Registration Day Battle lines drawn on precedent in Supreme Court fight Sunday shows - Ruth Bader Ginsburg's death dominates MORE (D-Minn.) on Monday posted 12 years of her tax returns to her campaign website, becoming the latest 2020 Democratic presidential candidate to make public at least a decade's worth of tax filings.

"Amy believes that transparency and accountability are fundamental to good governance," Klobuchar's website states. "That’s why she’s released her tax returns for every year since she’s been a candidate for federal office."

Klobuchar released her returns from 2006 — the year she was first elected to the Senate — through 2017.

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Her website does not include her 2018 tax return, though it is unclear if she has filed it yet. Taxpayers have until April 15 to file their 2018 returns, or until Oct. 15 if they request an extension.

The 2017 tax return for Klobuchar and her husband, John Bessler, shows the couple had total income of $292,306 and paid $62,787 in taxes, for an effective tax rate of 21.5 percent. The couple's income mainly came from Klobuchar's Senate salary and Bessler's income as a lawyer and law professor.

The couple made $5,075 in charitable gifts, including donations to the American Red Cross, UNICEF, United Way and several universities.

Klobuchar is the latest presidential candidate to release at least 10 years of tax returns. Sens. Kirsten Gillibrand Kirsten GillibrandSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Suburban moms are going to decide the 2020 election Jon Stewart urges Congress to help veterans exposed to burn pits MORE (D-N.Y) and Elizabeth Warren Elizabeth WarrenHarris joins women's voter mobilization event also featuring Pelosi, Gloria Steinem, Jane Fonda Judd Gregg: The Kamala threat — the Californiaization of America GOP set to release controversial Biden report MORE (D-Mass.) and Washington Gov. Jay Inslee Jay Robert InsleeBarr asked prosecutors to explore charging Seattle mayor over protest zone: report Bottom line Oregon senator says Trump's blame on 'forest management' for wildfires is 'just a big and devastating lie' MORE (D) have also done so.

In releasing their tax returns, the Democratic presidential candidates are highlighting their transparency, contrasting themselves with President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE, who in 2016 became the first major party nominee in decades to refuse to release his tax returns.