http://www.faa.gov/news/updates/?newsId=85229

For giggles, I did a preliminary analysis:



Overall rate decreased toward end of the year, but appears to be creeping back up again
50% of them take place in just four states: California, Florida, New York, and Texas
25% of all of them take place in just 9 cities: New York, Los Angeles, Miami, San Diego, Chicago, Orlando, Seattle Boston, & Atlanta
NMAC mentions got better for a bit, then appear to be ramping up

Still working a more detailed analysis, trying to reliably sort for fixed wing sightings vs. quads, evasive action required, etc. All have to come from free text field which makes it a bit tougher.