This plugin will display your Google Adsense earnings and related reports inside your WordPress Blog, on your Administration Dashboard.
Using up to 5 date intervals you can generate reports and statistics about: earnings, CPC, CTR, CPM, number of clicks and page views.
This plugin uses a free api provided by Google called: Google Adsense Management API.
Plugin name: Google Adsense Dashboard for WP
Video Tutorial: http://www.deconf.com/en/projects/google-adsense-dashboard-for-wordpress/
Author URI: http://www.deconf.com
License: GPLv2 or later