The answer is in the data for your neighborhood  

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If I can have data to back up my gut feeling, why would I ignore it? 

With a license you will have more access to information and data on the MLS, you can facilitate the necessary paperwork and contracts, as well as grow your RE network (in addition to what @Lynn Montang mentioned above.

I have been staring at last year's data of Mohave county.

As accessible as the data is, it represents only a portion of the neighborhood's or property's story.http://www.aonrentprotect.com/sites/Rent/Pages/Home.aspx

Real estate agents have access to this data.

Record your data, give it another couple months and then bring it to twice a month, and see how things go.

Offered by CoreLogic, which is a major data provider to the real estate and mortgage industries.  

@David Johnson - the information provided is pretty vague, maybe try inputting the data into one of the calculators?