NYC, just the city, accounts for 30% of the deaths in the US.
You've got 1 million drug addicts in NYC alone. That's not helping the survivor rate, nor the transmission rate.
[ stats from narconon.org]
The Grim Results of This High Availability of Drugs in New York
Based on national figures for dependence and addiction, more than a million people in the metropolitan area are dependent or addicted to drugs or alcohol. In 2006, more than 400,000 people in New York State alone reported that they needed treatment for drug addiction or dependence but did not get it. More than a quarter of a million did enter treatment, with alcohol addiction leading the numbers every year.