The chart below give information about

The bar chart shows the data how Global sales of CDs ,Games software and DVD or video have changed from 2000 to 2003
Overall,sales of DVDs or videos and Games software showed upward trend while selling of CDs was highest during first year and with decrease in second year it remained same in last two years.
In 2000, sales of Games software were lowest among all almost $13billion while selling of DVD or video was about $18billion. In the years of 2001,2002 and 2003 sales of Games software showed increase of almost $2billion ,$3billion and $1billion respectively.whereas selling of DVD or video was $21billion in 2001 and with increase of almost $6billion in 2001, it reached to $31billion in the year of 2003.
The sales of CDs were highest approximately $35billion in 2000 but in 2001 there was decline of about $2billion and selling remained same almost about $33 billion in last two(2002 and 2003) years.