During which year the ‘Oil Production Loss’ as a proportion of ‘Total Oil Produced’ is the lowest?

Total oil produced in the year 1996 = 10+700+1794+104+650 = 3258.

Therefore, oil production loss as a percentage of total oil produced in the year = $$\dfrac{650}{3258}\times 100$$ = 19.95%.

Similarly, we can calculate for the remaining year. Tabulating the same data, 

From the table, we can see that the oil production loss as a percentage of total oil produced is the lowest for the year 2002. Hence, option A is the correct answer.