Your results contain 4 solutions with the following criteria :

PKIs
Solution Smile rating Users rating Popularity
EJBCA EJBCA 4.0 Smile No rating
43%   Popularity on the site
OpenCA OpenCA 2.8 Smile No rating
14%   Popularity on the site
OpenSSL OpenSSL 3.7 Smile No rating
8%   Popularity on the site
easyCA 2.0 Smile No rating
13%   Popularity on the site