1. Promulgated on December 29, 1980
2. Amended on November 4, 1982
3. Amended on May 30, 1985
4. Article 32 amended on October 28, 1985
5. Amended on December 30, 1986
6. Amended on October 30, 1987
7. Article 43 amended on October 28, 1988
8. Article 31 amended on June 4, 1993
9. Articles 22, 23, 25, 31, 33, 37, 38 and 41 amended; article 32 deleted on July 14, 1999
10. All twenty-seven articles amended on June 27, 2001
11. all thirty-seven articles amended on July 31, 2002.
12. All twenty-eight articles amended on December 22, 2010
13. Article 23 amended on September 28, 2012.
14. Articles 18 and 26 amended on January 24, 2014
15. Amended on February 1, 2019