That is the raw number, not the rate.

Since the spread of social media, suicide rates are up for children, significantly: https://www.cdc.gov/nchs/data/databriefs/db471.pdf

> The suicide rate for people aged 15–19 did not change significantly from 2001 through 2009, then increased 57% from 2009 through 2017

> For people aged 10–14, the suicide rate tripled from 2007 through 2018