Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Representative | State | District(s) | Served | Party | Date of birth | Date of death | Age |
| --- | --- | --- | --- | --- | --- | --- | --- |
| William R. Poage | Texas | 11 | 1937–1978 | Democratic | December 29, 1899 | January 3, 1987 | 87 years, 5 days |
| Aubert C. Dunn | Mississippi | 5 | 1935–1937 | Democratic | November 20, 1896 | January 4, 1987 | 90 years, 45 days |
| Charles Goodell | New York | 43, 38 | 1959–1968 | Republican | March 16, 1926 | January 21, 1987 | 60 years, 311 days |
| Sala Burton | California | 5 | 1983–1987 | Democratic | April 1, 1925 | February 1, 1987 | 61 years, 306 days |
| Harold Earthman | Tennessee | 5 | 1947–1949 | Democratic | April 13, 1900 | February 26, 1987 | 86 years, 319 days |
| LaFayette L. Patterson | Alabama | 5 | 1928–1933 | Democratic | August 23, 1888 | March 3, 1987 | 98 years, 192 days |
| W. Sterling Cole | New York | 37, 39 | 1935–1957 | Republican | April 18, 1904 | March 15, 1987 | 82 years, 331 days |
| Claude I. Bakewell | Missouri | 11 | 1947–1949, 1951–1953 | Republican | August 9, 1912 | March 18, 1987 | 74 years, 221 days |
| Tim L. Carter | Kentucky | 5 | 1965–1981 | Republican | September 2, 1910 | March 27, 1987 | 76 years, 206 days |
| James G. Donovan | New York | 18 | 1951–1957 | Democratic | December 15, 1898 | April 6, 1987 | 88 years, 112 days |
| Orland K. Armstrong | Missouri | 6 | 1951–1953 | Republican | October 2, 1893 | April 15, 1987 | 93 years, 195 days |
| Albert L. Reeves Jr. | Missouri | 5 | 1947–1949 | Democratic | May 31, 1906 | April 15, 1987 | 80 years, 319 days |
| Edith Green | Oregon | 3 | 1955–1974 | Democratic | January 17, 1910 | April 21, 1987 | 77 years, 94 days |
| Antonio Borja Won Pat | Guam | At-large | 1973–1985 | Democratic | December 10, 1908 | May 1, 1987 | 78 years, 142 days |
| Stewart McKinney | Connecticut | 4 | 1971–1987 | Republican | January 30, 1931 | May 7, 1987 | 56 years, 97 days |
| James J. Delaney | New York | 6, 7, 9 | 1945–1947, 1949–1978 | Democratic | March 19, 1901 | May 24, 1987 | 86 years, 66 days |
| Frank Carlson | Kansas | 6 | 1935–1947 | Republican | January 23, 1893 | May 30, 1987 | 94 years, 127 days |
| Robert N.C. Nix Sr. | Pennsylvania | 4, 2 | 1958–1979 | Democratic | August 9, 1898 | June 22, 1987 | 88 years, 317 days |
| Alvin O'Konski | Wisconsin | 10 | 1943–1973 | Republican | May 26, 1904 | July 8, 1987 | 83 years, 43 days |
| Dominick V. Daniels | New Jersey | 14 | 1959–1977 | Democratic | October 18, 1908 | July 17, 1987 | 78 years, 272 days |
| William S. Moorhead | Pennsylvania | 28, 14 | 1959–1981 | Democratic | April 8, 1923 | August 3, 1987 | 64 years, 117 days |
| John W. Wydler | New York | 4, 5 | 1963–1981 | Republican | June 9, 1924 | August 4, 1987 | 63 years, 56 days |
| Thomas D'Alesandro Jr. | Maryland | 3 | 1939–1947 | Democratic | August 1, 1903 | August 23, 1987 | 84 years, 22 days |
| Francis E. Dorn | New York | 12 | 1953–1961 | Republican | April 8, 1911 | September 17, 1987 | 76 years, 162 days |
| Harold R. Gross | Iowa | 6 | 1949–1975 | Republican | June 30, 1899 | September 22, 1987 | 88 years, 84 days |
| Howard W. Robison | New York | 37, 33, 27 | 1958–1975 | Republican | October 30, 1915 | September 26, 1987 | 71 years, 331 days |
| John N. Camp | Oklahoma | 6 | 1969–1975 | Republican | May 11, 1908 | September 27, 1987 | 79 years, 139 days |
| Ray J. Madden | Indiana | 1 | 1943–1977 | Democratic | February 25, 1892 | September 28, 1987 | 95 years, 215 days |
| Raymond W. Karst | Missouri | 12 | 1949–1951 | Democratic | December 31, 1902 | October 4, 1987 | 84 years, 277 days |
| Charles J. Carney | Ohio | 19 | 1970–1979 | Republican | April 17, 1913 | October 7, 1987 | 74 years, 173 days |
| Clare Boothe Luce | Connecticut | 4 | 1943–1947 | Republican | March 10, 1903 | October 9, 1987 | 84 years, 213 days |
| John E. Sheridan | Pennsylvania | 4 | 1939–1947 | Democratic | September 15, 1902 | November 12, 1987 | 85 years, 58 days |
| Harold Washington | Illinois | 1 | 1981–1983 | Democratic | April 15, 1922 | November 25, 1987 | 65 years, 224 days |
| Abraham Kazen | Texas | 23 | 1967–1985 | Democratic | January 17, 1919 | November 29, 1987 | 68 years, 316 days |
| Eugene Siler | Kentucky | 8, 5 | 1970–1979 | Republican | June 26, 1900 | December 5, 1987 | 87 years, 162 days |
| Albert P. Morano | Connecticut | 4 | 1951–1959 | Republican | January 18, 1908 | December 16, 1987 | 79 years, 332 days |
| Monroe M. Redden | North Carolina | 12 | 1947–1953 | Democratic | September 24, 1901 | December 16, 1987 | 86 years, 83 days |
Question:
how long did sala burton serve?
Answer:
4 years