According to mega-jobs site indeed.com, analytics jobs have grown faster in the last 5 years than BI jobs and in summer 2010 Analytics jobs have exceeded BI jobs. Data mining jobs also grew, but more slowly than analytics jobs, perhaps because the term "analytics" has become more popular than "data mining", since the launch of Google analytics.
Among different types of analytics jobs, business analytics is most in demand, followed by web analytics, Google analytics, and Social analytics. Notice an unusual sharp rise and fall in "google analytics" demand in fall of 2008. Demand for "predictive analytics" and "text analytics" jobs was significanly smaller and is not included in the graph
You can analyze the job trends at www.indeed.com/jobtrends
If quotes are used in Indeed.com search box, results have very different meanings, so I suggest creating some new figures. In case of "social analytics", the difference is very significant.