iii. (1 pt) What was the historical average growth rate for the UK. Report this in cell E138. [Hint: you may find the "=AVERAGE()" worksheet function useful here!] iv. (3 pts) Consider that a popular working definition for a recession is at least two consecutive quarters (i.e. 6 months) of negative economic growth. Based on your calculations, when did the UK face a recession(s)? [Hint: you are looking for at least 2 consecutive quarters of negative economic growth. You may find it useful to use the "=IF()" formula in column F to check when the corresponding number in column E is negative for each period.]