Answer the following questions based on the information given below:
The bar chart below shows the revenue received, in million U.S.Dollars (USD), from subscribes to a particular Internet service. The data covers the period 2003 to 2007 for the United States(US) and Europe. The bar chart also shows the estimated revenues from subscription to the period 2008 to 2010.
While the subscription in Europe has been growing steadily towards that of the US, the growth rate in Europe seems to be declining. Which of the following is closest to the percent change in growth rate of 2007 (over 2006) relative to the growth rate of 2005 (over 2004)?