The Table Below Shows the Approximate Value of Canada's Crude

Multiple Choice

The table below shows the approximate value of Canada's crude oil and natural gas exports over a 5-year period.The amounts shown are billions of dollars.
TABLE 2-7
-Refer to Table 2-7.Assume that 2009 is the base year,with an index number = 100.What is the percentage change in the value of exports of natural gas from 2012 to 2013?

A) 11.2%
B) 11.2
C) -18.7
D) 18.7%
E) -18.7%