OTTAWA, Feb. 23 (UPI) -- A study reveals Canadian managers' wages rose faster than all other private-sector employment groups in the past 10 years.

The "Earnings in the last decade" study by Statistics Canada said managers' wages increased 20.3 percent with inflation, to an average $27.41 an hour from 1997 to 2007, The Canadian Broadcasting Corp. reported.

"The top-end executives and senior managers are seeing their pay rates increase tremendously," the study's leader, Rene Morissette, told reporters.

The managers' reportedly showed more than a 400 percent increase compared to other workers.

Non-managerial workers saw an average pay rate increase of only 4.6 percent to $16.46 per hour, and many did got even less, the report said.

Retail and clerical employees even experienced a decrease in their pay rates, the report said.

The CBC reported the study infers it pays more to tell people how to do a job than to do actually do it.