Year 1998: 51(1, 2, 3/4)

Year 1999: 52(1/2, 3/4)

Year 2000: 53(1, 2, 3-4)

Year 2001: 54(1, 2, 3, 4)

Year 2002: 55(1, 2, 3, 4)

Year 2003: 56(1, 2, 3, 4)

Year 2004: 57(1, 2, 3, 4); 

Year 2005: 58(1, 2, 3, 4); 

Year 2006: 59(1, 2, 3, 4); 

Year 2007: 60 (1/2, 3, 4)

Year 2008: 61 (1 , 2, 3, 4)

Year 2009: 62 (1, ,2 ,3 4, supplement)

Year 2010: 63 (1, 2, 3, 4)

Year 2011: 64 (1, 2, 3, 4)