The pie diagram gives comparisons on the number of sales and rentals in distinct formats of films from a store every year from 2002 to 2011.
Overall, while the figure for rentals and VHS sales witnessed a downward trend, an acceleration could be seen in DVD and blu-ray sales. In addition, the number of DVD sales was the highest among all the categories.
In 2002, the most popular form of service in the store was renting films, with almost 190,000 people utilized it; this then followed by a moderate plunge in the next 9 years to over 50,000 film rentals in 2011. A similar trend was seen in VHS sales in which the number had fallen drastically from above 80,000 sales in 2002 to only about 10,000 sales in the year 2001 and in the next year, no one purchased or rented this format of films anymore.
In contrast, the data of DVD sales stood at almost 50,000 in 2002 before increasing significantly to reach its peak at 210,000 sales in the year 2007, surpassing the statistic of rentals to become the most popular film format that people purchased in the store. Between 2008 and 2011, the sales had undergone a slight decline from under 210,000 in 2008 to approximately 190,000 sales in the last year. Similarly but with a less noticeable degree, blu-ray sales had grown from under 5,000 sales in 2007 to almost 20,000 in the examined period.