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

Preserved : 1 (1, 2, 3-4, 5, 6); 2 (1 to 6); 3 (1 to 3, 4-6); 4 (1 to 6); 5 (1, 2-3, 4, 5-6); 6 (1 to 3, 4-5, 6); 7 (1 to 4, 5-6); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 3, 4-5, 6); 12 (1 to 3, 4-5, 6); 13 (1 to 3, 4-5, 6); 14 (1 to 4, 5-6); 15 (1, 2, 3-5, 6); 16 (1-2, 3-4, 5-6); 17 (1 to 4, 5-6); 18 (1-2, 3, 4, 5-6); 19 (1 to 6); 20 (1, 2-3, 4-5, 6); 21 (1, 2, 3-5, 6); 22 (1-2, 3, 4, 5-6); 23 (1 to 3, 4-5, 6); 24 (1, 2-3, 4 to 6); 25 (1, 2-4, 5, 6); 26 (1, 2-4, 5-6); 27 (1, 2-4, 5, 6); 28 (1-2, 3, 4-5, 6); 29 (1-2, 3, 4-5, 6); 30 (1-3, 4 to 6); 31 (1-2, 3 to 6); 32 (1 to 4, 5-6); 33 (1, 2, 3-4, 5, 6); 34 (1, 2-3, 4 to 6); 35 (1, 2-3, 4 to 6); 36 (1, 2, 3-4, 5, 6); 37 (1 to 3, 4-5, 6); 38 (1 to 6); 39 (1-4, 5, 6); 40 (1 to 3, 5-6); 41 (1-2, 3-4, 5-6); 42 (1, 5-6); 43 (1, 2, 3-4, 5, 6); 44 (1 to 3, 4-5, 6); 45 (1 to 6); 46 (1)

28 (1-2, 3, 4-5, 6); 29 (1-2, 3, 4-5, 6); 30 (1-3, 4 to 6); 31 (1-2, 3 to 6); 32 (1 to 5-6); 33 (1 to 3-4, 5, 6); 34 (1, 2-3, 4 to 6); 35 (1, 2-3, 4 to 6); 36 (1 to 3-4, 5, 6); 37 (1 to 4-5, 6); 38 (1 to 6); 39 (1-4, 5, 6); 40 (1 to 5-6)