1.Promulgated on December 07, 1931
2.Amended on August 13, 1932
3.Amended on Novenber 05, 1936
4.Amended on July 16, 1947
5.Amended on September 27, 1947
6.Amended on August 15, 1972
7.Amended on December 21, 1981
8.Amended on January 21, 1998
9.Amended on Novenber 30, 2005
10.Amended on Novenber 14, 2011