A new Google+ addition, rolled out (confusingly) in the midst of April Fool’s season, makes view counts optionally visible on your profile. Both profiles and pages can now show the number of times content on your Google+ has been viewed. The view count applies to all content, totalling the number of views across your profile, posts and photos.
The stat can be optionally hidden. To change the visibility, go to your Google+ settings (plus.google.com/settings) and toggle the checkbox labelled ‘Show how many times your profile and content have been viewed’.