The bar chart gives information about changes the levels of rentals and sales of films in VHS, DVD, and Blu-ray formats in a particular store during the period of 2002 to 2011.
The most striking features is that rentals and VHS sales experienced gradual declines, the sales of films in VHS format stopped at the end of year 2005. While DVD experienced dramatic incline but then slowly declined and Blu-ray experienced slow incline starting in the middle of period to the end.
In the beginning of sampled period, rentals was dominant toward VHS and DVD sales which stood about 185.000 per year then followed by gradual decline during nine years and leveled out at about 51.000. In the same period, VHS followed the same patterns of rentals started at around 81.000 sales per year then plunged to 10.000 within three years and there were no more sales of films in VHS format till the end of period. In contrast, in the first five years, the DVD sales increased dramatically and hit a high of 215.000 per year, which broke the record of highest sales over the time frame.
Furthermore, in year 2006, there were only rentals and DVD sales activities at the store but then there were a small number of Blu-ray sales about 9.000 in the following year. It happened to increase though slowly for the rest of period and reached its highest sales at only 11.000 per year.
