I suspect these numbers are going to increase for both after this last year. Rising suicide rates might not be nurse specific, though they do have a higher average than normal.
(some research later...)
Here's a CDC suicide-per-industry report: https://www.cdc.gov/mmwr/volumes/69/wr/mm6903a1.htm
Teachers have the least, at around 9.4 per 100k. Veterans are around 124 per 100k. Men have significantly higher rates across the board (including healthcare).
Strangely enough, nurses are at the bottom of the list of "above average suicide rate" industries... which I didn't expect at all. But perhaps this article means to imply that healthcare has gone up a few in that list? Unsure.