year	first class postage rate, cents (current)	first class postage rate, cents (2012 $)	CPI
1866	3	44.0	15.4
1867	3	47.4	14.3
1868	3	49.1	13.8
1869	3	51.4	13.2
1870	3	53.4	12.7
1871	3	57.5	11.8
1872	3	57.5	11.8
1873	3	58.4	11.6
1874	3	61.6	11.0
1875	3	64.0	10.6
1876	3	65.2	10.4
1877	3	66.5	10.2
1878	3	69.9	9.7
1879	3	69.9	9.7
1880	3	68.5	9.9
1881	3	68.5	9.9
1882	3	68.5	9.9
1883	2	46.6	9.7
1884	2	47.6	9.5
1885	2	48.6	9.3
1886	2	49.7	9.1
1887	2	49.1	9.2
1888	2	49.1	9.2
1889	2	50.8	8.9
1890	2	51.4	8.8
1891	2	51.4	8.8
1892	2	51.4	8.8
1893	2	52.0	8.7
1894	2	54.5	8.3
1895	2	55.8	8.1
1896	2	55.8	8.1
1897	2	56.5	8.0
1898	2	56.5	8.0
1899	2	56.5	8.0
1900	2	55.8	8.1
1901	2	55.1	8.2
1902	2	54.5	8.3
1903	2	53.2	8.5
1904	2	52.6	8.6
1905	2	53.2	8.5
1906	2	52.0	8.7
1907	2	49.7	9.1
1908	2	50.8	8.9
1909	2	51.4	8.8
1910	2	49.1	9.2
1911	2	49.1	9.2
1912	2	48.1	9.4
1913	2	45.7	9.9
1914	2	45.2	10.0
1915	2	44.8	10.1
1916	2	41.5	10.9
1917	2	35.3	12.8
1918	3	44.9	15.1
1919	2	26.1	17.3
1920	2	22.6	20.0
1921	2	25.3	17.9
1922	2	26.9	16.8
1923	2	26.4	17.1
1924	2	26.4	17.1
1925	2	25.8	17.5
1926	2	25.5	17.7
1927	2	26.0	17.4
1928	2	26.4	17.1
1929	2	26.4	17.1
1930	2	27.1	16.7
1931	2	29.7	15.2
1932	2	33.0	13.7
1933	3	52.2	13.0
1934	3	50.6	13.4
1935	3	49.5	13.7
1936	3	48.8	13.9
1937	3	47.1	14.4
1938	3	48.1	14.1
1939	3	48.8	13.9
1940	3	48.4	14.0
1941	3	46.1	14.7
1942	3	41.6	16.3
1943	3	39.2	17.3
1944	3	38.5	17.6
1945	3	37.7	18.0
1946	3	34.8	19.5
1947	3	30.4	22.3
1948	3	28.1	24.1
1949	3	28.5	23.8
1950	3	28.1	24.1
1951	3	26.1	26.0
1952	3	25.6	26.5
1953	3	25.4	26.7
1954	3	25.2	26.9
1955	3	25.3	26.8
1956	3	24.9	27.2
1957	3	24.1	28.1
1958	3	23.5	28.9
1959	4	31.1	29.1
1960	4	30.5	29.6
1961	4	30.2	29.9
1962	4	29.9	30.2
1963	5	36.9	30.6
1964	5	36.5	31.0
1965	5	35.9	31.5
1966	5	34.9	32.4
1967	5	33.8	33.4
1968	6	39.0	34.8
1969	6	36.9	36.7
1970	6	34.9	38.8
1971	8	44.6	40.5
1972	8	43.3	41.8
1973	8	40.7	44.4
1974	10	45.8	49.3
1975	10	42.0	53.8
1976	13	51.6	56.9
1977	13	48.5	60.6
1978	15	52.0	65.2
1979	15	46.7	72.6
1980	15	41.1	82.4
1981	18	44.8	90.9
1982	20	46.8	96.5
1983	20	45.4	99.6
1984	20	43.5	103.9
1985	22	46.2	107.6
1986	22	45.4	109.6
1987	22	43.8	113.6
1988	25	47.8	118.3
1989	25	45.6	124.0
1990	25	43.2	130.7
1991	29	48.1	136.2
1992	29	46.7	140.3
1993	29	45.4	144.5
1994	29	44.2	148.2
1995	32	47.5	152.4
1996	32	46.1	156.9
1997	32	45.1	160.5
1998	32	44.4	163.0
1999	33	44.8	166.6
2000	33	43.3	172.2
2001	34	43.4	177.1
2002	37	46.5	179.9
2003	37	45.4	184.0
2004	37	44.3	188.9
2005	37	42.8	195.3
2006	39	43.7	201.6
2007	41	44.7	207.3
2008	42	44.1	215.3
2009	44	46.4	214.5
2010	44	45.6	218.1
2011	44	44.2	224.9
2012	45	45.0	226.0