NSF first started publishing data on underrepresented groups in STEM in 1977. In 1980, Congress mandated this report be produced every two years, and the report began incorporating people with disabilities in 1994. Today, the STEM workforce includes 12.3 million women (35% of the STEM workforce), 8.3 million members of underrepresented minority groups (24%), and 1 million people with disabilities (3%).