Where to gather time-series data about avg. or median rent per unit?

HI all,

I am looking for time-series/historical data about average or median rent per unit in NYC… could anybody please kindly give me some pointers?

I could find the current average or median rent per unit online, but I just couldn’t find the historical numbers for the past a few years…

Thanks a lot for your help and I really appreciate it!

I’ve got to ask.

Why do you care?

The current rental rates are what you need to set your rent.
Market rent is what your unit will rent for today.

Ok. I’ll bite. How do you find the current and accurate median rent for an area online?