U.S. Census Bureau

Quarterly Financial Report (QFR)  for Manufacturing, Mining, Trade, and Selected Service Industries

For Indicator 25 Years and older - Completed 4 Years of High School or moreStarting in 2012, data were calculated using population controls based on Census 2010.Starting in 2003, respondents could choose more than one race. The race data in this table for White, non-Hispanic White, Black, and Asian from 2003 onward represent those respondents who indicated only one racial identity. Prior to 2003, Asians were grouped with Pacific Islanders.Starting in 2001, data were calculated using population controls based on Census 2000.Beginning with data for 1992, a new question results in different categories than for earlier years. Data shown as 'Completed 4 Years of High School or more' is now collected by the category 'High School Graduate'. Data shown as 'Completed 4 Years of College or more', is now collected by the categories, 'Bachelor's degree; 'Master's degree'; 'Doctorate degree'; and 'Professional degree'. Due to the change in question format, median years of schooling cannot be derived. U.S.: Percent of People 25 Years and Over Who Have Completed High School or College, by Race, Hispanic Origin and Sex  

The US Presidential election takes place every 4 years and Congressional election happens every 2 years. National elections generally fall into two categories: elections where congressional seats are the highest offices decided and years where voters decide on the office of the President and congressional seats.To avoid confusion with presidential elections, the source refers to non-presidential year elections as “congressional elections" and the data is published at 4 years interval Reference link: https://www.census.gov/library/publications/2015/demo/p20-577.html

U.S. Non-Employer Statistics (NES)

Annual Survey of State and Local Government Finances: Historical data (formerly Special 60)

Years of School Completed by People 25 Years and Over, by Age and Sex: Selected Years 1940 to 2020