Understanding statistics and Calvinism are two good but painful things to do in Baptist life. There have been a bunch of recent studies among pastors on Calvinism and here are some key data points.
Among SBC pastors, 5-Point Calvinism has grown 10% per year from 2006 to 2012. (2006 LifeWay Study) (2012 LifeWay Study)
This is in stark contrast to the 2010 BARNA study which shows Calvinism is not growing amoung Protestants.
In other words, while Calvinism is not growing in other Protestant churches, it is growing in the SBC. The reason Calvinism is growing in the SBC is shown by the 2007 NAMB study - SBC seminaries are cranking out 5-Point Calvinists at a growing rate.
Additionally, SBC Pastors are more likely to hold to double-predestination and limited atonement compared to protestant churches generally. (2011 LifeWay General Protestant Study) (2012 SBC Specific LifeWay Study)
As a minor note, the 2012 LifeWay study mistakenly reports the number of Protestent Pastors who hold to 5 Point Calvinism as 32% when that's the number that say the are Reformed and the number who are 5-Point Calvinists was actual 10%.
While it's helpful to have data on Pastors, I wonder if a study will be done on regular Church Members? In any case, these studies show the concentration and growth of Calvinism among SBC Pastors - highlighting the need for the Traditional Baptist Statement (link).