Historical Kauffman Index Microdata The historical Kauffman Index microdata file for each year includes more than 650,000 observations for U.S. adults. The variables include entrepreneurship, age, race, gender, immigrant status, education, industry, state of residence, and many additional work, demographic, and geographical characteristics. Share: Facebook LinkedIn Twitter Startup Index Data: Rate and Opportunity Share of New Entrepreneurs Kauffman Index Codebook – Version 7.0 KISA Data Files (CSV) 20152014201320122011201020092008200720062005200420032002200120001999199819971996 Aggregated Kauffman Index Data (National, State, and Metropolitan Areas – CSV) Startup Activity Main Street Activity Growth Entrepreneurship