Index Value Plot

This type of tool is sometimes used to measure the increase or decrease of stocks and the stock market. It is usually used to plot some type of investment.




http://envstudies.brown.edu/oldsite/Web/special%20reports/Classes/ES201/2000/Drought%20Management/D%20-%20Indicators/indices%20with%20data/PDI/index%20value%20graph.html