Preserved : 1988: 2(1, S 1, 2, 4-6), 1989: 3(1, S 1, 2-12), 1990: 4(1, S 1 1, 2-12), 1991: 5(1-12, S), 1992: 6(1-12), 1993: 7(1, S 1, 2-12), 1994: 8(1-3, SUPPLEMENT3, 4, S 4, 5-12), 1995: 9(1-12), 1996: 10(1, S 1 7, 2-12, S), 1997: 11(1-15), 1998: 12(1-18), 1999: 13(1-18), 2000: 14(1, S 1, 2-18), 2001: 15(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5, S 5, 6-18), 2002: 16(1, S 1, 2, Suppl 2, 3-18), 2003: 17(1-3, S 3, 4, S 4, 5-16, 18), 2004: 18(1-2, S 2, 3-18), 2005: 19(1, S 1, 2, S 2, 3, Suppl 3, 4, Suppl 4, 5-18), 2006: 20(1-18), 2007: 21(1, Suppl 1, 2, Suppl 2, 3, Suppl 3, 4, Suppl 4, 5, Suppl 5, 6, Suppl 6, 7, Suppl 7, 8, Suppl 8, 9-18), 2008: 22(1, Suppl 1, 2, Suppl 2, 3, Suppl 3, 4, Suppl 4, 5, Suppl 5, 6-18), 2009: 23(1, Suppl 1, 2-6, 8-18), 2010: 24(1, Suppl 1, 2, Suppl 2, 3, Suppl 3, 4, Suppl 4, 5, Suppl 5, 6-18), 2011: 25(1-18), 2012: 26(1, S1, 2-18), 2009/2013: 27(1-7) |