The supplied bar chart gives an overview of visitor numbers in three London-based museums over a six-year period from 2007 to 2012. Overall, it can be be observed that the popularity of the National Gallery graudally increased while the Victora and Alber Museum attracted less visitors over the years. The British Museum experienced sharp fluctuation in terms of visitor numbers.
As far as the National Gallery is concerned, the museum was frequented by the least number of visitors in 2007 with slightly more than 5 million visitors. This number steadily rose with only a minor dip in 2011 to more than 15 millions by 2012, making National Gallery the most visited London museum out of the three.
In contrast, that same year, in 2012 only 10 million people was interested in visiting the Victoria and Albert Museum. The number of visitors oscillated over the years, starting from 14 million in 2007 and 2008, with a dramatic drop to 9 and then 7 millions in 2009 and 2010 after which it went up a little by the end of the period.
As regard to the British Museum a similar trend can be observed. In 2007 the museum was visited by 13 million people after which it saw a dramatic decline in the number of visitors with only 6 million in 2008 and 2009. That gradually increased to 14 million by 2012.