Other countries which historically reported box office figures in terms of admissions include European countries such as Germany, Italy, and Spain, the Soviet Union, and South Korea. Box Office Mojo estimates the North American ticket sales by dividing the domestic box office gross by the average ticket price (ATP) of a given year, a method that Box Office India uses to estimate Indian footfalls (ticket sales). See List of films by box office admissions for the films with the highest known estimated ticket sales. Box office lists For lists of films which are major box-office hits, see List of highest-grossing films, List of films by box office admissions and Lists of highest-grossing films. Films that are considered to have been very unsuccessful at the box office are called box office bombs or box office flops. For a list of these films, see List of box office bombs. Box office reporting There are numerous websites that monitor box-office receipts, such as BoxOffice, Box Office Mojo, The Numbers, A Box Office, Box Office India, Koimoi and ShowBIZ Data. These sites provide box office information for hundreds of movies. Data for older movies is often incomplete due to the way box office reporting evolved, especially in the U.S., and the availability of information prior to the introduction of the internet. History Rise of Hollywood Variety started reporting box office results by theatre on March 3, 1922 to give exhibitors around the country information on a film's performance on Broadway, which was often where first run showings of a film were held. In addition to New York City, they also endeavoured to include all of the key cities in the U.S. in future and initially also reported results for 10 other cities including Chicago and Los Angeles. In 1929, the first issue of The Motion Picture Almanac was released and included a list of the top 104 grossing films for the past year. In 1932, Variety published the studios' top-grossing films of the year and has maintained this tradition annually since. In 1937, BoxOffice magazine began publishing box office reports. Beginning in the 1930s, BoxOffice magazine published a Barometer issue in January, which reported the performance of movies for the year expressed as percentages. Golden era of film In 1946, Variety started to publish a weekly National Box Office survey on page 3 indicating the performance of the week's hits and flops based on