The bar chart tells us the New York stock exchange price of a share in an American firm at intervals of six months between January 1999 and July 2005.
The price of a share at the start of the period was 10 dollars. It then rose slightly to 12 dollars in July 1999 before rising quickly to 18 dollars in January 2000. The price of a share then fell back to 10 dollars by January 2001. The share price almost doubled to 19 dollars by July 2001, before falling gradually to 16 dollars in July 2002. Between this date and January 2005, the share price increased constantly, with the most significant increases being between January 2004 and July 2004 (a rise of 15 dollars) and between July 2004 and January 2005 (an increase of 13 dollars). Thereafter, there was a dramatic fall in the share price from a high point of 68 dollars to 39 dollars.