This is a snapshot of the last sixty days. That sharp drop off at the end is just because it's an incomplete month.
The reason the percentage jumps are so high is that I updated to the new analytics format when we upgraded, so it started at zero in January. Normally it would be up or down 1 or 2%.
Here's a snapshot of last year Feb 1 to March 31. It's not the same exact report because they changed Analytics and I'm not really familiar with Analytics in general so I wasn't able to easily put the exact same data on the screen