-
1st~4th, 6th
Chang, Hyong
1947.11.01 - 1961.04.25
1964.07.24 - 1964.12.30
-
5th, 7th~13th
Park, Jung-sook
1961.04.26 - 1964.07.23
1965.01.07 - 1990.03.18
-
14th
Lee, Yong-woo
1990.03.19 - 1993.08.31
-
15th
Chang, Byung-gyu
1994.02.04–1994.05.26
-
16th~17th, 23rd~24th
Kim, Hak-joon
1994.07.18 - 1996.12.12
2011.06.11 - 2013.02.28
-
18th~20th, 25th
Chang, Choong-sik
1996.12.24 - 2004.09.16
2013.03.01 - present
-
21st
Park, Suk-moo
2005.03.04 - 2007.11.15
-
22nd
Park, Yu-cheol
2008.01.03 - 2011.06.10
-
27th
Chang, Ho-sung
2020.12.24~2024.08.31