Suicide rate is more complex than just available prostitutes or girls in general.
In 2019, Sweden had 14.7 suicides per 100,000 people. Historically, Sweden has had a high suicide rate, with the most suicides in the developed world during the 1960s. That may have been due, at least in part, to cultural attitudes regarding suicide and long, dark winters, particularly in the northern regions. The government responded to the crisis with social welfare and mental health services, and the numbers have dropped dramatically. Today, Scandinavian countries – Norway, Sweden, Denmark, and Finland – have very high happiness rates and relatively low suicide rates. However, the dark winters – 20 hours of darkness or more in each day in some areas – causes seasonal affective disorder (SAD), a form of depression, which has been known to correlate with higher rates of suicide.
https://worldpopulationreview.com/country-rankings/suicide-rate-by-country