Though traditionally a moderate newspaper and sometimes a supporter of the Conservative Party, it supported the Labour Party in the 2001 and 2005 general elections. In 2004, according to MORI, the voting intentions of its readership were 40% for the Conservative Party, 29% for the Liberal Democrats, and 26% for Labour. The Times had an average daily circulation of 394,448 in March 2014; in the same period, The Sunday Times had an average daily circulation of 839,077. An American edition of The Times has been published since 6 June 2006. It has been heavily used by scholars and researchers because of its widespread availability in libraries and its detailed index. A complete historical file of the digitized paper is online from Gage Cengage publisher.