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Country P exports goods and imports goods.

Export prices and import prices are set to an index of 100 in year 1. The table shows corresponding prices indices for years 2 and 3. 

Which statement is correct?

1 ) 

It is not possible to say how the terms of trade changed without further information. 

2 ) 

The terms of trade improved between years 1 and 2, and improved again between years 2 and 3. 

3 ) 

The terms of trade improved between years 1 and 2, and then remained unchanged between years 2 and 3.  

4 ) 

The terms of trade worsened throughout the whole period. 

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