1 to 46

30

Preserved : 1969: 1(1-4), 1970: 2(1-4), 1971: 3(1-4), 1972: 4(1-4), 1973: 5(1-4), 1974: 6(1-4), 1975: 7(1-4), 1976: 8(1-4), 1977: 9(1-4), 1978: 10(1-4), 1979: 11(1-4), 1980: 12(1-4), 1981: 13(1-4), 1982: 14(1-4), 1983: 15(1-4), 1984: 16(1-4), 1985: 17(1-4), 1986: 18(1-4), 1987: 19(1-4), 1988: 20(1-4), 1989: 21(1-4), 1990: 22(1-4), 1991: 23(1-4), 1992: 24(1-4), 1993: 25(1-4), 1994: 26(1-4), 1995: 27(1-4), 1996: 28(1-4), 1997: 29(1-4), 1998: 30(1-4), 1999: 31(1-4), 2000: 32(1-4), 2001: 33(1-4), 2002: 34(1-4), 2003: 35(1-4), 2004: 36(1-4), 2005: 37(1-4), 2006: 38(1-4), 2006/2007: 39(1-4), 2008: 40(1-4), 2009: 41(1-4), 2010: 42(1-4), 2011: 43(1-4), 2011/2012: 44(1-4), 2012/2013: 45(1-4), 2011/2012/2014: 46(1-4), 2011/2015: 47(1-4), 2016: 48(1-4), 2016/2017: 49(1-4), 2018: 50(1-4), 2018/2019: 51(1-4), 2019/2020: 52(1-4), 2021: 53(1-4), 2022: 54(1-4), 2023: 55(1-4), 2024: 56(1-4)

Preserved : 1 (1 to 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 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1)