1.Announced on July 19,2000
2.Amended on December 20, 2000
3.As last amended on February 4, 2004
4.Amended on May, 18, 2005
5.Amended on May, 30, 2006
6.Amended on January, 16, 2008
7.Amended on February, 4, 2015
8.Amended on January, 31, 2018