The bar chart illustrates data on the numbers of three different kinds of visitors to a museum from 1997 to 2012.
Overall, the museum recorded the highest sales from adult visitors in all four years, while sales for people who visited special exhibitions showed a reversed trend during the same period.
In 1997, adults going to museums recorded the highest sales around 300 thousand dollars, and remained stable for the next 5 years. However, this figure of adults witnessed a sharp increase to more than 400 thousand dollars in 2007, before dropping slightly to 380 thousand dollars at the end of the period.
Concerning other visitors, the museum recorded the lowest sales from people who visited special exhibitions at 28 thousand dollars in 1997, and then rose slowly to 42 thousand dollars over the period. Furthermore, the sales from young people who are under 15 are not big but still contribute quite a lot to the total of sales; however, the percentage of young visitors witnessed a decreased trend from 120 thousand dollars to around 82 thousand dollars at the end of the period. Additionally, the totals of sales of museums presents a sharp rose over the period.