The prevalence of suicidal ideation among young people is between 14.3% to 22.6% and that of suicide attempts between 4.6% and 16.9% globally.  Rates have remained consistent over time, except in the US, where they have been steadily increasing since 2007.

Van Meter, A. R., Knowles, E. A., & Mintz, E. H. (2022). Systematic review and meta-analysis: international prevalence of suicidal ideation and attempt in youth. Journal of the American Academy of Child & Adolescent Psychiatry.

https://www.jaacap.org/article/S0890-8567(22)01981-5/fulltext?dgcid=raven_jbs_aip_email