Since 1981, when spending was $6.1 million, the amount spent on advertising has increased an average of nearly 40 percent a year.

Nationwide, its rates have increased an average of only 6.6 percent annually over the past five years.

The proposal calls for fares to increase an average of 10 percent next year.

China's defense outlays increased an average of about 15 percent a year from 1990 to 2005, according to the Chinese military.

Taxes in the township, which is still growing, have increased an average of 12.4 percent a year since 1988, to $27.5 million.

Fares for special bus services would increase an average of 13 percent.

Moreover, in the last year, steel prices have increased an average of 8 percent.

Total program costs have increased an average of 10 percent a year over the last five years.

Rates for most business service will increase an average of 3.9 percent.

Subway ad prices have increased an average of 10 percent since the new program began.