An unprecedented rise in female donors to political campaigns, fueled largely by opposition to President Donald Trump, continues to grow in the run-up to the 2018 elections.

The number of women donating to federal candidates has surged by 182 percent when compared with this time in the 2016 cycle, according to new data from the nonpartisan Center for Responsive Politics. Much of the activity has been among Democratic donors, a trend that first began to appear after the Women’s March on Washington the day after Trump’s inauguration.

The number of women who are donating in smaller amounts, but enough to trigger the $200 threshold requiring disclosure to the Federal Election Commission, is even more dramatic: up 422 percent over 2016, the center’s data showed.

“It’s a huge increase,” said Sarah Bryner, the center’s research director. “It reflects a change in how women see political fundraising. In the past, people didn’t really view political donations as something that important or even that impactful, and it still may not be. But they are ramping up their activism — and money and contributions are included in that, especially on the left.”

By this point in the 2012 cycle, about 133,000 women had donated to federal candidates, the center found by using software and research to determine the gender of most donors. So far this cycle, more than 850,000 women have donated to federal candidates and political action committees, almost double the number of female donors Roll Call first reported last year.