Table 1
Summary statistics of exchange rates and tariff changes

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Summary statistics of exchange rates and tariff changes
  1979 to 1984 1984 to 1990 1990 to 1996
Average annual changes Standard deviations Average annual changes Standard deviations Average annual changes Standard deviations
  percent
Nominal US/Canada exchange rate -1.63 0.00 1.42 0.00 -2.06 0.00
Real US/Canada exchange rate -0.19 2.06 1.57 1.54 -1.85 1.48
U.S. tariff against Canada -0.20 0.34 -0.24 0.34 -0.39 0.43
Canadian tariff against US -0.25 0.45 -0.42 0.53 -0.84 0.66
Average tariff between Canada and US -0.22 0.30 -0.33 0.34 -0.62 0.51
Note(s):
Average annual changes are calculated as differences between the first and last years of the variable, divided by the number of years. Tariffs for 1980 are used for 1979.