- Queen Elizabeth II marks her 60th year as queen this year
- The celebrations culminate with festivities June 2-5
- Check out some of the numbers behind her decades-long reign
It's been 60 years since Queen Elizabeth II became monarch of the UK, and she's marking her Diamond Jubilee year with a series of parties, pageants and even 1,000 boats sailing up the River Thames.
On this anniversary year of her coronation, check out the numbers behind the queen's reign:
60 years, four months -- The length of Queen Elizabeth II's reign as of June 6, 2012, making her the second-longest reigning monarch.
63 years, seven months, two days -- The length of the reign of Queen Victoria, from 1837 to 1901.
2,868 -- The number of diamonds in the Imperial State Crown that the queen wears at the state opening of Parliament.
4.9 lbs -- The weight of the St. Edward's Crown worn by Elizabeth at her coronation in 1953. (Photos: Monarchs' diamonds, rubies and sapphires)
£32.1 million -- Amount the British government provides Elizabeth and Prince Philip annually (about $50 million U.S.)
$500 million -- The queen's approximate net worth.
$4.2 billion -- Net worth of British entrepreneur Richard Branson.
1 -- Number of ATMs in Buckingham Palace.
261 -- The number of official overseas visits Elizabeth has made as of January 1, 2012.
116 -- The number of different countries she has visited during her 60 years as queen.
5 -- The number of times the queen has made a state visit to the United States; the first was in 1957 and the most recent in 2010.
Prime ministers and presidents
12 -- Number of prime ministers who have served during Elizabeth's reign, from Winston Churchill to David Cameron.
2 -- Number of prime ministers born during her reign (Tony Blair in 1953 and David Cameron in 1966).
12 -- Number of U.S. presidents in office since Elizabeth ascended to the throne, from Harry Truman to Barack Obama.
1 -- Number of U.S. presidents born during Elizabeth's reign (Barack Obama in 1961).
1 -- Number of sitting U.S. presidents with whom the queen did not meet (Lyndon B. Johnson)
Firsts and onlys
Queen Elizabeth II is the only British monarch to have celebrated a diamond wedding anniversary, having been married to Prince Philip since 1947.
She is the only person is the United Kingdom who can drive without a license or car registration.
She does not have a passport.