 Plymouth 's gross value added ( a measure of the size of its economy ) was 5 @,@ 169 million GBP in 2013 making up 25 % of Devon 's GVA . Its GVA per person was £ 19 @,@ 943 and compared to the national average of £ 23 @,@ 755 , was £ 3 @,@ 812 lower . Plymouth 's unemployment rate was 7 @.@ 0 % in 2014 which was 2 @.@ 0 points higher than the South West average and 0 @.@ 8 points higher than the average for Great Britain ( England , Wales and Scotland ) . 
