Let's look at the OECD stats for teenage suicide worldwide:
> Teenage suicides rates have, on average, declined slightly over the past two decades or so (Chart CO4.4.A). While in 1990 there were, on average across the OECD, 8.5 suicides per 100 000 teenagers (15-19), by 2015 this rate had fallen to 7.4. Much of this decline occurred during the 2000s. Between 1990 and 1999 the OECD average teenage suicide remained fairly stable at around 8.4 suicides per 100,000, but this average fell across the 2000s before reaching a low of 6.3 per 100,000 in 2007. With the exception of 2008, the average rate remained lower than 7.0 until 2014, although it increased slightly in 2014 and 2015.
> Teenage suicides rates have, on average, declined slightly over the past two decades or so (Chart CO4.4.A). While in 1990 there were, on average across the OECD, 8.5 suicides per 100 000 teenagers (15-19), by 2015 this rate had fallen to 7.4. Much of this decline occurred during the 2000s. Between 1990 and 1999 the OECD average teenage suicide remained fairly stable at around 8.4 suicides per 100,000, but this average fell across the 2000s before reaching a low of 6.3 per 100,000 in 2007. With the exception of 2008, the average rate remained lower than 7.0 until 2014, although it increased slightly in 2014 and 2015.
https://www.oecd.org/els/family/CO_4_4_Teenage-Suicide.pdf