in January 1913 called for the planning of a National Budget. This calling for a National Budget created The Budget and Accounting Act of 1921. From there, the Chamber worked to aid the U.S. Government during both World Wars and through the Great Depression. During the 1960s, the Chamber thought of the business community in a different way. They didn't have a World War to fight, however, a war against crime and poverty. During the oil crisis of 1973, the Chamber pushed for expanding domestic production. This entailed oil and gas exploration, as well as coal mining, and the Trans Alaska Pipeline. In 1981, the Chamber launched the Let's Rebuild America campaign to help support President Reagan's Economic Recovery and Tax Act. With increased globalization in the 1990s, the Chamber promoted expanding opportunities for the export of American goods and services in hopes of creating jobs for Americans. Although various chambers of commerce can work with all levels of government, they tend to concentrate their efforts on specific levels: Local chambers of commerce tend to focus on local issues, state chambers on state issues, and the U.S. Chamber of Commerce focuses on national issues at the federal government level. They also work closely with a number of youth organizations in the country about the value and role of business in our society today. In 1993, the Chamber lost several members over its support for Clinton's healthcare reform efforts. The Chamber had chosen to support healthcare reform at that time due to the spiraling healthcare costs experienced by its members. However, House Republicans retaliated by urging boycotts of the organization. By the time health care reform became a major issue again in 2010–2012, the organization opposed such efforts. Though the Chamber claims to represent over 3 million American businesses, according to data 94% of its income comes from about 1500 big businesses. In late 2011 it was revealed that the Chamber's computer system was breached from November 2009 to May 2010 by Chinese hackers. The purpose of the breach appeared to be gain information related to the Chamber's lobbying regarding Asian trade policy. Since a 1971 internal memo by Lewis Powell advocating a more active role in cases before United States Supreme Court, the Chamber has found increasing success in litigation. Under the Burger and Rehnquist Courts the Chamber was on the prevailing side 43% and 56% of the time, respectively,