Statistics 18.0.1 - December 2009 PASW Statistics 18.0.2 - April 2010 PASW Statistics 18.0.3 - September 2010 IBM SPSS Statistics 19.0 - August 2010 Competitors R SAS STATA Statistica WPS XLSTAT See also Wikiversity has learning materials about SPSS List of statistical packages Comparison of statistical packages PSPP  – a free