How do I count outbound link clicks in WP?

I've started advertising in AdWords and I now need to count the number of times a reader clicks my outbound links to other websites in posts and pages.

I just searched here and spent an hour on WP dot org and could not find a plugin for WP that gives me that count. It would be nice to get daily, weekly, monthly and reset counts.

I want to track clicks for various campaigns.

I want the links to look normal and when the reader places their mouse over the link the browser shows the normal link - no reference to a counter.

Thanks much....