1. Promulgated on July 21, 1975
2. Amended on April 1, 1980
3. Article 2 amended on October 20, 1980
4. Amended on March 3, 1982
5. Article 8 amended on July 20, 1982
6. All twelve articles amended on September 20, 1982
7. Amended on March 21, 1983
8. Articles 11 and 12 amended on August 6, 1984
9. Articles 2 and 12 amended on September 27, 1984
10. Articles 2 and 12 amended on July 9, 1986
11. Articles 4 and 12 amended on August 30, 1989
12. Articles 2, 4 and 12 amended on March 11, 1991
13. Articles 1, 6, 7, 8, 11 and 12 amended on September 30, 1994
14. Article 4 amended on March 13, 1996
15. Article 4 amended on December 18, 1996; effective from January 4, 1997
16. Articles 2, 4, 9 and 10 amended on August 13, 1997
17. Title and all seventeen articles amended on July 28, 1999
18. Articles 8 and 17 amended on August 16, 2000
19. Articles 2, 4, 7 and14 amended on December 8, 2000; effective from December 8, 2000
20. Article 7 amended on April 18, 2001; effective from April 23, 2001
21. Articles 2, 3 and 6 amended on September 15, 2003; effective from November 1, 2003
22. Articles 1, 3 and 14 amended on May 2, 2007; effective from June 1, 2007
23. Article 7 amended on May 23, 2008; effective from May 23, 2008
24. Articles 4, 5, 9, 12& 14 amended on Dec. 23, 2009; effective from Jan. 1, 2010
25. Articles 4, 6, 7& 16 amended on November 29, 2010; effective from December 25, 2010
26. Articles 11 amended on October 29, 2013; effective from October 29, 2013
27. Article 3 and 5 amended on June 11, 2015; effective from July 1, 2015
28. Amended on August 24, 2022；effective from August 26, 2022