tatoes harvested for a region (000 tonnes uantity of a main 19x4 19X2 102 19X3 100 19X5 128 19X1 97 112 Index (19X3 = 100 19X9 19X6 121 19X7 145 19X8 149 152 Index (19X3 100 Required: a)Convert the above information to show a set of chain base relatives. (b)Given that the amount of potatoes harvested in 19X4 was 587,000 tonnes, calculate the amount of potatoes harvested (to the nearest 1000 tonnes) each year from 19X6 to 19X9