The bar charts provide information on the museum visitor numbers from 2007 to 2012.
Overall, the peck number of Victoria and Albert Museum were in 2007 and 2008. In contrast, one of National Gallery and British Museum were in 2012. It is clear difference of this bar chart.
According to the yellow bar chart, a significant increase can be seen in the visitors of National Gallery. In 2007, there were the least number of visitors. However, the number of visitors had extended every year from 2007 to 2012. Therefore, in 2012, National Gallery accounted for the largest number of visitors of the total. It reaches the highest point at more than fifteen million.
According to pink bar chart, an important decline can be seen from 2008 to 2010. In 2008 Victoria and Albert Museum reached the peak at around 13 million. However, in 2010, it hit the lowest point at around 6 million. It is dramatically decrease.
According to green bar chart, British Museum reached the second largest number of visitors at around 11 million in 2007. However, in 2008 and 2009 it reached the lowest points at around 6 million. After that, a dramatically raise can be seen and it reached the peak at around 14 million.