Martin Manufacturing has implemented several programs to i mprove its productivity. They have asked you to evaluate the firm's productivity by comparing this year's performance with I ast year's. The following data are available: Last Year This Year Output 10,500 units 12,100 units Labor Hours 12,000 13.200 Utilities $7,600 $8,250 Capital $83,000 $88.000 Has Martin Manufacturing improved its productivity during the past year?