Joost de Valk

Based on ideas in an <a href="http://www.kaushik.net/avinash/2007/11/blog-metrics-six-recommendations-for-measuring-your-success.html" rel="nofollow ugc">excellent post</a> by Avinash Kaushik this plugin calculates the following:
<ul>
<li>average number of posts per month</li>
<li>average number of words per post</li>
<li>average number of comments per post without your own comments</li>
<li>average number of trackbacks per post</li>
<li>average number of words used in comments to posts</li>
</ul>
and it calculates the same data for the last month, and for each author too!
Includes a widget for your sidebar too!
More info:
<ul>
<li><a href="http://yoast.com/wordpress/blog-metrics/" rel="nofollow ugc">Blog Metrics</a>.</li>
<li>Read more about <a href="http://yoast.com/articles/wordpress-seo/" rel="nofollow ugc">WordPress SEO</a> so you can get the most out of this plugin.</li>
<li>Other <a href="http://yoast.com/wordpress/" rel="nofollow ugc">WordPress plugins</a> by the same author.</li>
</ul>

Blog Metrics

Based on ideas in an excellent post by Avinash Kaushik this plugin calculates some statistics about your blog.

Patrick Robrecht

This plugin evaluates the data collected with the privacy-friendly <a href="https://wordpress.org/plugins/statify/" rel="ugc">Statify</a> Plugin which is only saving date, referrer and target url for every page view.
The plugin creates evaluations for the following criteria:
<ul>
<li>views per year / month / day</li>
<li>most popular content</li>
<li>views per post</li>
<li>views per referrer</li>
</ul>
The results are shown in data tables and diagrams. The evaluation results can be downloaded as CSV files (for an import into LibreOffice Calc or Microsoft Excel).

Statify – Extended Evaluation

This plugin evaluates the data collected with the privacy-friendly Statify Plugin (data tables and diagrams). The evaluation can be downloaded as csv.

Blog Metrics vs Statify – Extended Evaluation