The chart below shows the annual number of rentals and sales (in various formats) of films from a particular store between 2002 and 2011.

The number of rentals and sales in various formats of films, between 2002 and 2011 in a particular store has changed a lot. Sometimes it has been very low and sometimes very high. The number of rental since 2002 has been decreasing every year. Comparing the number of rentals in 2002 with 2011, it’s possible noticing that in 2002 it was about 180,000 rentals against approximately 55,000 in 2011. In regarding the number of VHS sales, comparing the period between 2002 and 2005, it has happened as well. In 2002 the number of VHS sales was about 85,000 sales, against 65,000 in 2003, 40,000 in 2004 and about 10,000 sales in 2005. After that time, this store stopped to sale VHS. By another side, the number of DVD sales grew up between 2002 and 2007, from approximately 45,000 in 2002, more than 100,000 in 2003, to more than 200,000 in 2007. However, since 2008, it has been going down slightly. In 2011 this number was less than 180,000.

The number of Blu-Ray sales has started since 2007 and it has growing up slowly. In 2007 it was nowhere near as significant as DVD sales but I guess it will grow up drastically in a few years.

Actually the number of DVD sales is still very higher than other products in that place.
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