ALA launched "Diversity Counts" in 2006 a great tool for diversity data research

Introduction

In October 2006, the American Library Association (ALA) released "Diversity Counts," a comprehensive study of gender, race, age and disability statues in the library profession. To complete the study, the American Library Association worked with Decision Demographics, a research firm in Arlington, Virginia, to analyze available U.S. data for the industry of “library.” Diversity Counts used 1990 and 2000 Census data to develop estimates for the distribution of gender, race, age and disability status within the library profession.

In many ways, Diversity Counts provided a benchmark for the initiatives of the American Library Association, documenting the state of the profession before the launch of several diversity recruitment initiatives—most notably the Spectrum Scholarship Program begun in 1997. It also served as a call to action, demonstrating progress within the profession, but confirming the continued need to invest time and resources into the recruitment of a more diverse workforce.

Since its release, Diversity Counts has been used by many researchers, program managers, and advocates as a tool to demonstrate the need for increased diversity recruitment within the profession. As the American Library Association and other programs have continued their work and embarked on new initiatives, there has been a regular and steady call to continue the work of Diversity Counts to help document the diversity of the profession. (...)

For full view of  ALA "Diversity Counts" description, please access link bellow. 

Reference: American Library Association. (1996-2014). Diversity Counts 2009-2010 Update. Retrieved from http://www.ala.org/offices/diversity/diversitycounts/2009-2010update.