18 to 26

Preserved : 1949: 1(1-4), 1950: 2(1-4), 1951: 3(1-4), 1952: 4(1-4), 1953: 5(1-4), 1954: 6(1-4), 1955: 7(1-4), 1956: 8(1-4), 1957: 9(1-4), 1958: 10(1-4), 1959: 11(1-4), 1960: 12(1-4), 1961: 13(1-4), 1962: 14(1-4), 1963: 15(1-4), 1964: 16(1-4), 1965: 17(1-6), 1966: 18(1-6), 1967: 19(1-6), 1968: 20(1-6), 1969: 21(1-6), 1970: 22(1-6), 1971: 23(1-6), 1972: 24(1-6), 1973: 25(1-6), 1974: 26(1-6), 1975: 27(1-6), 1976: 28(1-6), 1977: 29(1-4), 1978: 30(1-4), 1979: 31(1-4), 1980: 32(1-4), 1981: 33(1-6), 1982: 34(1-6), 1983: 35(1-6), 1984: 36(1-6), 1985: 37(1-6), 1986: 38(1-6), 1987: 39(1-6), 1988: 40(1-6), 1989: 41(1-6), 1990: 42(1-6), 1991: 43(1-6), 1992: 44(1-6), 1993: 45(1-6), 1994: 46(1-6), 1995: 47(1-6), 1996: 48(1-6), 1997: 49(1-6), 1998: 50(1-6), 1999: 51(1-6), 2000: 52(1-6), 2001: 53(1-6), 2002: 54(1-6), 2003: 55(1-6), 2004: 56(1-6), 2005: 57(1-6), 2006: 58(1-6), 2007: 59(1-6), 2008: 60(1-6), 2009: 61(1-6), 2010: 62(1-6), 2011: 63(1-6), 2012: 64(1-6), 2013: 65(1-6), 2014: 66(1-2, 1-5, 4-6), 2015: 67(1-6), 2016: 68(1-6), 2017: 69(1-6), 2018: 70(1-4), 2019: 71(1-6), 2020: 72(1-6), 2021: 73(1-6), 2022: 74(1-6), 2023: 75(1-2, 4-6), 2024: 76(1-4)

Preserved : 1 (2, 3-4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1-3, 4); 12 (1 to 4); 13 (1 to 4); 14 (1, 2-3, 4); 15 (1, 2-3, 4); 16 (1 to 4); 17 (1 to 3, 4-6); 18 (1 to 6); 19 (1 to 6); 20 (1, 2-3, 4 to 6); 21 (1 to 6); 22 (1 to 3, 4-5, 6); 23 (1, 2-3, 4 to 6); 24 (1 to 4, 5-6); 25 (1-2, 3 to 6); 26 (1 to 6); 27 (1 to 6); 28 (1 to 3, 4-5, 6); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 6); 34 (1 to 6); 35 (1-2, 3-4, 5, 6); 36 (1 to 6); 37 (1, 2, 3-4, 5-6); 38 (1, 2-4, 5-6); 39 (1 to 6); 40 (1 to 6); 41 (1, 2-3, 4-5, 6); 42 (1 to 6); 43 (1 to 6); 44 (1-2, 3-4, 5, 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1, 2, 3-4, 5, 6); 50 (1 to 6); 51 (1-2, 3, 4-5, 6); 52 (1-3, 4 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 4, 5-6); 58 (1 to 6); 59 (1 to 6); 60 (1 to 6); 61 (1 to 6); 62 (1-2, 3 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 4); 66 (1-2, 3, 4-5, 6); 67 (1 to 6); 68 (1 to 6); 69 (1-2, 3, 4, 5-6); 70 (1, 2, 3-4); 71 (2-3, 4, 5-6); 72 (1, 2, 4 to 6); 73 (1 to 6); 74 (1 to 6); 75 (1 to 6); 76 (1)

58 (1 to 6); 59 (1 to 6); 60 (1 to 6); 61 (1 to 6); 62 (1-2, 3 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1-2, 3, 4-5, 6); 67 (1 to 6); 68 (1 to 6); 69 (1-2, 3 to 5-6); 70 (1 to 3-4); 71 (1, 2-3, 4, 5-6)