Please answer the given financial question based on the context.
Context: the graph below shows a five-year comparison of the cumulative shareholder return on the company's common stock with the cumulative total return of the s&p smallcap 600 index and the s&p 600 electrical equipment index , all of which are published indices . comparison of five-year cumulative total return from december 31 , 2002 to december 31 , 2007 assumes $ 100 invested with reinvestment of dividends period indexed returns .
|company/index|baseperiod 12/31/02|baseperiod 12/31/03|baseperiod 12/31/04|baseperiod 12/31/05|baseperiod 12/31/06|12/31/07|
|a o smith corp|100.00|132.23|115.36|138.20|150.26|142.72|
|s&p smallcap 600 index|100.00|138.79|170.22|183.30|211.01|210.39|
|s&p 600 electrical equipment|100.00|126.12|152.18|169.07|228.83|253.33|
12/31/02 12/31/03 12/31/04 12/31/05 12/31/06 12/31/07 smith ( a o ) corp s&p smallcap 600 index s&p 600 electrical equipment .
Question: what was the difference in cumulative total return for the five year period ending 12/31/07 between a o smith corp and the s&p smallcap 600 index?
Answer:
-0.6767