1st - 5th
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1st Lee Taek-gyu Aug.4 ,1970 - Feb.4,1974
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2nd Choe Dae-hyeon Feb.5 ,1974 - Dec.25,1978
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3rd Kim Jae-hyeon Dec.26 ,1978 - Apr.26,1981
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4th Kim Uk-tae Apr.27,1981 - Aug.28,1986
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5th Jang Yeong-cheol Aug.29 ,1986 - Mar.4,1988
6th -10th
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6th Lee Dong-ho Mar.5,1988 - Dec.12,1988
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7th Hong Jae-hyeong Dec.13,1988 - Mar.27,1990
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8th Lee Soo-hyoo Mar.28,1990 - Feb.18,1991
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9th Kim Gi-in Feb.19,1991 - Jan.28,1992
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10th Baek Won-gu Jan.29,1992 - Mar.3,1993
11th - 15th
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11th Kim Gyeong-tae Mar.4,1993 - Dec.27,1993
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12th Kim Yong-jin Dec.28,1993 - May.22,1994
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13th Lee Hwan-gyun May.23,1994 - Dec.25,1995
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14th Kang Man-soo Dec.26,1995 - Dec.23,1986
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15th Kim Yeong-seop Dec.24,1996 - Nov.19,1997
16th - 21st
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16,17th Eom Nak-yong Nov.20,1997 - May.25,1999
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18th Kim Ho-sik May.26,1999 - Apr.2,2001
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19th Yoon Jin-sik Apr.6,2001 - Feb.4,2002
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20th Lee Yong-seop May.5,2002 - Mar.3,2003
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21st Kim Yong-deok Mar.3,2003 - May.26,2005
22nd - 26th
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22nd Seong Yun-kap May.27,2005 - Mar.6,2008
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23rd Hur Yong-suk Mar.8,2008 - Mar.22,2010
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24th Yoon Yong-sun Mar.23,2010 - Jul.21,2011
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25th Joo Yung-sup Jul.22,2011 - Mar.15,2013
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26th Baek Un-chan Mar.16,2013 - Jul.25,2014
27th - 30th
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27th Kim Nak-hoe Jul.26,2014 - May.24,2016
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28th Chun Hong-uk May.25,2016 - Jul.14,2017
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29th Kim Yung-moon Jul.31,2017 - Dec.12,2019
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30th Roh Suk-Hwan Dec.13,2019
