So the combined premiums for doctors' services, outpatient hospital care and prescription drugs will average slightly more than $120 a month.

The Congressional Budget Office says premiums for the new drug benefit will average $35 a month.

Its studies found that this year the value of the new Medicare benefits was $62, while the new premiums averaged $145.

Federal officials say premiums would average $35 a month.

Sponsors say the premiums would average $35 a month, though the measure does not specify an amount.

Drivers' premiums averaged $955 last year, down from $985 in 1999.

In fact the premium has averaged around six percentage points.

Mr. Duffy said the premiums would probably average $30 to $40 a month.

In 1991, it says, annual premiums on a basic policy averaged $1,100 for a person 65 years old.

The Bush administration said on Friday that premiums would average $36 a month, rising to $37 in 2007 and $41 in 2008.