1.Promulgated on July 26, 1961
2.Amendment promulgated on February 28, 1973
3.Amendment promulgated on September 30, 1980
4.Amendment to title and all Articles promulgated on September 9, 1982
5.Amendment to all Articles promulgated on March 20, 2000
6.Amendment to articles 11,15,32 promulgated on March 4, 2010
7.Amendment to all Articles promulgated on March 11, 2015