A look at stamp prices between 1919 to present

Year – Postage, per ounce

1919 – 2 cents

1932 – 3 cents

1958 – 4 cents

1963 – 5 cents

1968 – 6 cents

1971 – 8 cents

1974 – 10 cents

1975 – 13 cents

1978 – 15 cents

1981 – 18 cents (March)

1981 – 20 cents (November)

1985 – 22 cents

1988 – 25 cents

1991 – 29 cents

1995 – 32 cents

1999 – 33 cents

2001 – 34 cents

2002 – 37 cents

2006 – 39 cents

2007 – 41 cents

2008 – 42 cents

2009 – 44 cents

Source: U.S. Postal Service