Also, the company first became listed on 18 July 1970.
The company is listed on the stock market since 1999.
The value of the companies listed has dropped 96 percent since March 2000.
In 1987 more than 350 companies were listed on the exchange.
More than 70 companies are now listed on the exchange.
On average, these companies have been listed for approximately five years.
The company was listed on the Fortune 500 list from 1995-2001.
In 2007, the company was listed as 844 on the Fortune 1000.
By 1955 the company was listed as 75 in the Fortune 500.
In 2009 the company was listed at number 312 on the Fortune 500 list.