In determining a committee's major donors and recipients, the Center grouped individual contributors together with the organizations they reported as employers. Where no employer and occupation information was provided, or where an individual reported being self-employed, the Center identified donors through their affiliations with organizations. For example, a donor listed as "XYZ Company" could include contributions directly from the company and from individuals who list XYZ as an employer, along with those individuals' spouses. The figures on this page represent contributions and expenditures since disclosure began in August 2000, or since the establishment of the particular 527 committee, if later than August 2000.