We are given the data for the number of exports and production in different years. We need to calculate the percentage of export with respect to production for each year.
The formula to calculate the percentage of export with respect to production is:
\[
\text{Percentage} = \frac{\text{Exports}}{\text{Production}} \times 100
\]
Now, we calculate this for each year:
For the year 1992:
\[
\text{Percentage} = \frac{180}{540} \times 100 = 33.33%
\]
For the year 1993:
\[
\text{Percentage} = \frac{288}{720} \times 100 = 40%
\]
For the year 1996:
\[
\text{Percentage} = \frac{450}{660} \times 100 = 68.18%
\]
For the year 1995:
\[
\text{Percentage} = \frac{400}{600} \times 100 = 66.66%
\]
From the calculations, we can see that the year 1996 has the highest percentage of export with respect to production, which is 68.18%.