Describing a chart The bar chart shows changes in the annual number of rentals and sales of films in VHS, DVD and Blu-ray formats in one particular store from 2002 to 2011. Rentals and DVD reveal the opposite trends, rentals became less popular, whilst DVD’s popularity, despite of the slight decrease in the last years, increased over the time, both were available during the whole period; VHS were much less popular than rentals and DVD, and the sales were stopped in 2005. In 2006 only rental service and DVD were available for the customers. In the period from 2006 to 2011 blu-ray sales began to rise gradually. Film rentals were the most popular in 2002 when the sales reached 175 000. Revenue from rentals fell steadily over the next 9 years and was at its minimum in 2011. According to the data in the table DVD sales were at their minimum in 2002 and increased steeply up to 2007 when the numbers attained their peak of more than 200 000, after that figures decreased gradually and eventually went down to 170 000. The chart shows number of VHS sales between 2002 and 2005. The figures decreased from 75 000 in 2002 to 5000 in 2005 and eventually ceased trading. Blu-ray went on sale for the first time in 2007 and grew in popularity steadily for the next 4 years， maximum sales are slightly over 10 000.