Chart 3 
United States' share of Canada's annual merchandise trade

Chart description

The title of the graph is "United States' share of Canada's annual merchandise trade ."
This is a line chart.
There are in total 25 categories in the horizontal axis. The vertical axis starts at 55 and ends at 90 with ticks every 5 points.
There are 2 series in this graph.
The vertical axis is "%."
The units of the horizontal axis are years from 1988 to 2012.
The title of series 1 is " Exports."
The minimum value is 72.3 occurring in 2011.
The maximum value is 83.9 occurring in 2002.
The title of series 2 is " Imports."
The minimum value is 61.7 occurring in 2011.
The maximum value is 77 occurring in 1998.