Good question! According to Yaruss' [research](https://drive.google.com/file/d/1Tl7764WsaYVgkwU-nc9oJI_lo-J8Y0iv/view?pli=1): >*"In 2010, the WHO conducted community surveys in* *21 countries (N > 100,000) and found that the prevalence* *of suicidal ideation was 2.0% (Borges et al., 2010). The* *lifetime estimated prevalence of suicidal ideation has been* *estimated at 9.0% (Nock et al., 2008). In the United* *States, the annual prevalence of suicidal ideation has been* *recently estimated at 4.0% (Piscopo et al., 2016)."*