New Feeds from FeedBurner

It's been a dozen days since signing up for RSS using Feedburner. The chart shows the subscribers per day for the last few weeks. Google reports a slight drop in blog hits which could be due to users reading the blog via the feed, and not going to the physical blog page.
I assume this is new subscribers per day, but it may indicate users reading the feed per day ~ I have no idea. The low is 8 subscribers, with the high is 12; Sunday 8/13 [dark green].
By signing up for a feed the blog risks losing ad revenue, but may gain some via increased visits ~ it's a risk.

I don't use a counter for this blog. I use the Google AdSense reports from interfacebus.com. So the Feedburner stats provide data on pages viewed, origin and so on. This blog is "in the noise" compared to the web pages of www.interfacebus.com. This blog may get 1000 hits a month while a single page on the web site may get 8000 a day. I'm not even sure the report gets to a page that only receives 50 hits a day ~ it's truncated.

Interestingly I see that this blog has hits from around the world and hits to pages that were written a year ago