Funnily enough, yesterday an article appeared[1] claiming the number of suicides in the Netherlands has dropped up to 20 percent. Cause as of yet unknown. Also unclear whether this effect is temporary.
One hypothesis the article states is that in normal life people's sensory inputs are overwhelmed and cause anxiety. The sudden calmness the lockdown introduced might have a positive effect. This is, however, in contrast with the paired increased loneliness.
[1] https://nos.nl/artikel/2334626-tot-20-procent-minder-zelfdod...