The National Lottery was founded in 1994
National Lottery sales are growing despite the downturn in the economy.
Camelot, which has just begun its third stint as the Lottery operator, has reported its best sales for 10 years, raising an extra £26m for good causes.
In the 12 months to 31 March, Lottery sales rose to £5.1bn, an increase of £182.8m on the previous year.
Camelot said it had been boosted by the growing number of people now choosing to play via the internet or by using their mobile phones.
It said it was also helped by Britain's strong performance at the Beijing Olympics, which has boosted sales of tickets and scratch cards raising funds for the London Olympics in 2012.
With three years to go, more than £400m of the Lottery's £750m target for the games has been raised, although a further £750m is due to be diverted from existing Lottery good causes.
During the year Camelot also replaced its entire network of National Lottery terminals.
Ticket sales have now grown 12% over the past five years.