SOLUTION
a ) Are there any years where the amount of ice increased? Which year?
Yes.
Between 1991 and 1996 - ( From 6. 47 to 7. 58 )
b ) What is the percent change from 1991 to 2016?
c ) Even though there are exceptions, would you say in general the amount of Arctic ice is increasing or decreasing?
From the table above, the amount of Arctic ice is decreasing.