There was never a 12 cent stamp for regular postage. It went from 10 cents to 13 cents on 12/31/1975. There was however a postage card stamp for 12 cents in 1981.
The postage rate in 2000 was 33 cents
It would be 37 cents that year. A post card cost 23 cents.
It varies from year to year for the cost of postage stamps. Right now in 2010, it cost around 44 cents for stamps..
In March of 2009 the first class stamp was 42 cents. It went to 44 cents in May of that year.
In 1990 the first class stamp was 25 cents. For a postcard it was 15 cents.
the cost of a stamp in the year 1996 was 32 cents
The postage rate in the US in 2000 was 33 cents. It was raised from 32 cents in 1999. It went to 34 cents in 2001.
US postage for first class letter was 3-cents.
The first class postage rate was 32 cents at the start of 1999. On January 10th it went up to 33 cents.
Cost of a postage stamp was dependent on the face value of the stamp. The most common rate stamp is for First Class Mail. In the United States 1977 that was 13 cents for the first ounce.
the postage stamp had cost $00.32 in the year 1993
First class postage was 29 cents that year. A post card would be 19 cents.