year	first class postage rate, cents (current)	first class postage rate, cents (2012 $)	CPI
1866	3	44.7	15.4
1867	3	48.2	14.3
1868	3	49.9	13.8
1869	3	52.2	13.2
1870	3	54.2	12.7
1871	3	58.4	11.8
1872	3	58.4	11.8
1873	3	59.4	11.6
1874	3	62.6	11.0
1875	3	65.0	10.6
1876	3	66.2	10.4
1877	3	67.5	10.2
1878	3	71.0	9.7
1879	3	71.0	9.7
1880	3	69.6	9.9
1881	3	69.6	9.9
1882	3	69.6	9.9
1883	2	47.3	9.7
1884	2	48.3	9.5
1885	2	49.4	9.3
1886	2	50.5	9.1
1887	2	49.9	9.2
1888	2	49.9	9.2
1889	2	51.6	8.9
1890	2	52.2	8.8
1891	2	52.2	8.8
1892	2	52.2	8.8
1893	2	52.8	8.7
1894	2	55.3	8.3
1895	2	56.7	8.1
1896	2	56.7	8.1
1897	2	57.4	8.0
1898	2	57.4	8.0
1899	2	57.4	8.0
1900	2	56.7	8.1
1901	2	56.0	8.2
1902	2	55.3	8.3
1903	2	54.0	8.5
1904	2	53.4	8.6
1905	2	54.0	8.5
1906	2	52.8	8.7
1907	2	50.5	9.1
1908	2	51.6	8.9
1909	2	52.2	8.8
1910	2	49.9	9.2
1911	2	49.9	9.2
1912	2	48.9	9.4
1913	2	46.4	9.9
1914	2	45.9	10.0
1915	2	45.5	10.1
1916	2	42.1	10.9
1917	2	35.9	12.8
1918	3	45.6	15.1
1919	2	26.5	17.3
1920	2	23.0	20.0
1921	2	25.7	17.9
1922	2	27.3	16.8
1923	2	26.9	17.1
1924	2	26.9	17.1
1925	2	26.2	17.5
1926	2	25.9	17.7
1927	2	26.4	17.4
1928	2	26.9	17.1
1929	2	26.9	17.1
1930	2	27.5	16.7
1931	2	30.2	15.2
1932	2	33.5	13.7
1933	3	53.0	13.0
1934	3	51.4	13.4
1935	3	50.3	13.7
1936	3	49.6	13.9
1937	3	47.8	14.4
1938	3	48.9	14.1
1939	3	49.6	13.9
1940	3	49.2	14.0
1941	3	46.9	14.7
1942	3	42.3	16.3
1943	3	39.8	17.3
1944	3	39.1	17.6
1945	3	38.3	18.0
1946	3	35.3	19.5
1947	3	30.9	22.3
1948	3	28.6	24.1
1949	3	28.9	23.8
1950	3	28.6	24.1
1951	3	26.5	26.0
1952	3	26.0	26.5
1953	3	25.8	26.7
1954	3	25.6	26.9
1955	3	25.7	26.8
1956	3	25.3	27.2
1957	3	24.5	28.1
1958	3	23.8	28.9
1959	4	31.6	29.1
1960	4	31.0	29.6
1961	4	30.7	29.9
1962	4	30.4	30.2
1963	5	37.5	30.6
1964	5	37.0	31.0
1965	5	36.4	31.5
1966	5	35.4	32.4
1967	5	34.4	33.4
1968	6	39.6	34.8
1969	6	37.5	36.7
1970	6	35.5	38.8
1971	8	45.4	40.5
1972	8	43.9	41.8
1973	8	41.4	44.4
1974	10	46.6	49.3
1975	10	42.7	53.8
1976	13	52.5	56.9
1977	13	49.3	60.6
1978	15	52.8	65.2
1979	15	47.4	72.6
1980	15	41.8	82.4
1981	18	45.5	90.9
1982	20	47.6	96.5
1983	20	46.1	99.6
1984	20	44.2	103.9
1985	22	46.9	107.6
1986	22	46.1	109.6
1987	22	44.5	113.6
1988	25	48.5	118.3
1989	25	46.3	124.0
1990	25	43.9	130.7
1991	29	48.9	136.2
1992	29	47.5	140.3
1993	29	46.1	144.5
1994	29	44.9	148.2
1995	32	48.2	152.4
1996	32	46.8	156.9
1997	32	45.8	160.5
1998	32	45.1	163.0
1999	33	45.5	166.6
2000	33	44.0	172.2
2001	34	44.1	177.1
2002	37	47.2	179.9
2003	37	46.2	184.0
2004	37	45.0	188.9
2005	37	43.5	195.3
2006	39	44.4	201.6
2007	41	45.4	207.3
2008	42	44.8	215.3
2009	44	47.1	214.5
2010	44	46.3	218.1
2011	44	44.9	224.9
2012	45	45.0	229.6
2013	46	46.0	229.6