On April 1, the District of Columbia held primaries for the Democratic, Republican, Green, and Libertarian Parties. Here is a link to the D.C. Board of Elections web page, showing preliminary election returns.
The web page does not have party labels. However, the returns for each party begin with the office of Delegate to the U.S. House of Representatives. The Democratic returns are first, followed by the Republican returns, the Green returns, and the Libertarian returns. One easy way to see the beginning of the Republican returns is to find Nelson Rimensnyder’s returns (he is the only Republican candidate for Delegate to the U.S. House).
Several hundred Green Party members voted in the Green Party primary. It appears that only about 25 voters participated in the Libertarian primary.