1. Adopted on March 1, 1972
2. Amended on January 12, 1973
3. Amended on July 29, 1978
4. Amended on November 25, 1980
5. Amended on April 21, 1986
6. Article 3, Article 5 and Article 9 amended on December 6, 1989
7. Amended on September 18, 1996
8. Article 2 and Article 8 amended on July 12, 2000
9. Article 2, Article 5, Article 7, Article 8, Article 13 and Article 14 amended on October 27, 2004
10.Article 7 and 8 amended on September 1, 2006
11.Amended on December 28, 2012
12.Amended on November 26, 2015