Question: That's Loonie. The Canadian dollar's value against the U.S. dollar has seen some significant changes over recent history. Use the following graph of the C$/US$ exchange rate for the 30-year period between 1980 and end-of-year 2010 to estimate the percentage change in the Canadian dollar's value (affectionately known as the "loonie") versus the dollar for the following periods.
a. January 1980-December 1985
b. January 1986-December 1991
c. January 1992-December 2001
d. January 2002-December 2006
e. January 2007-December 2008
f. January 2009-December 2010