The NY Post created this graphic showing the recent increase in hit-and-run deaths this year. While 2006's death toll is not as bad as other years (2002 - yikes!), there are still a couple more weeks to go in the year. Experts say the many drivers flee because they are drunk or lack insurance and/or licenses. Many times licenses are revoked for "non-motor-vehicle violations, such as not paying child support" while other times some drivers have fake licenses. Then again, sometimes the drivers have committed crimes.
Gothamist on hit-and-run incidents.