Core

Description

United States (US) 2005 Core SPSS Data

Core

Description

United States (US) 2004 Core SPSS Data

Core

Description

United States (US) 2003 Core SPSS Data

Core

Description

United States (US) 1998 Core SPSS Data

Core

Description

United States (US) 1994 Core SPSS Data

Core

Description

United States (US) 1992 Core SPSS Data

Core

Description

United States (US) 1985 Core SPSS Data

Core

Description

United States (US) 1975 Core SPSS Data

Core

Description

United States (US) 1966 Core SPSS Data

Core

Description

United Kingdom (UK) 2014 Core SPSS Data