18, 26, 30 to 63

Preserved : 4 (1 to 9, 11 to 19, 21 to 24); 5 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 6 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 37 (1?2, 2 to 9, 11, 12, 13‐14, 15 to 19, 21 to 24); 38 (1?2, 2 to 9, 11, 12, 13‐14, 15 to 19, 21 to 24); 39 (1 to 9, 11 to 19, 21 to 24); 41 (S1, 1 to 9, 11 to 19, 21 to 24); 42 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 43 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 44 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 45 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 46 (1‐2, 2 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 47 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 48 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 49 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 51 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 52 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 53 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 54 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 55 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 56 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 57 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 58 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 59 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 61 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 62 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 63 (1 to 9, 11 to 19, 21 to 29, 31 to 36)

Preserved : 4 (1 to 9, 11 to 19, 21 to 24); 5 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 6 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 37 (1?2, 2 to 9, 11, 12, 13?14, 15 to 19, 21 to 24); 38 (1?2, 2 to 9, 11, 12, 13?14, 15 to 19, 21 to 24); 39 (1 to 9, 11 to 19, 21 to 24); 41 (S1, 1 to 9, 11 to 19, 21 to 24); 42 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 43 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 44 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 45 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 46 (1?2, 2 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 47 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 48 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 49 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 51 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 52 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 53 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 54 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 55 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 56 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 57 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 58 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 59 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 61 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 62 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 63 (1 to 9, 11 to 17, 19, 21 to 23)

Preserved : 4 (1 to 9, 11 to 19, 21 to 24); 5 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 6 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 37 (1‐2, 2 to 9, 11, 12, 13‐14, 15 to 19, 21 to 24); 38 (1‐2, 2 to 9, 11, 12, 13‐14, 15 to 19, 21 to 24); 39 (1 to 9, 11 to 19, 21 to 24); 41 (S1, 1 to 9, 11 to 19, 21 to 24); 42 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 43 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 44 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 45 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 46 (1?2, 2 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 48); 47 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 48 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 49 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 51 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 52 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 53 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 54 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 55 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 56 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 57 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 58 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 59 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 61 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 62 (1 to 9, 11 to 19, 21 to 29, 31 to 39, 41 to 49, 51, 52); 63 (1 to 9)

Preserved : 1962: 1(1-12), 1963: 2(1-12), 1964: 3(1-12), 1965: 4(1-12), 1966: 5(1-12), 1967: 6(1-12), 1968: 7(1-12), 1969: 8(1-12), 1970: 9(1-12), 1971: 10(1-12), 1972: 11(1-12), 1973: 12(1-12), 1974: 13(1-12), 1975: 14(1-12), 1976: 15(1-12), 1977: 16(1-12), 1978: 17(1-12), 1979: 18(1-12), 1980: 19(1-12), 1981: 20(1-12), 1982: 21(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5, S 5, 6, S 6, 7, S 7, 8, S 8, 9, S 9, 10, S 10, 11, S 11, 12, S 12), 1983: 22(1, S 1, 2, S 2, 3, S 3, 4, S 4, 5, S 5, 6, S 6, 7, S 7, 8, S 8, 9, S 9, 10, S 10, 11, S 11, 12, S 12), 1984: 23(1-12), 1985: 24(1-12), 1986: 25(1-12), 1987: 26(1-12), 1988: 27(1-12), 1989: 28(1-12), 1990: 29(1-12), 1991: 30(1-12), 1992: 31(1-12), 1993: 32(1-12), 1994/1995: 33(1-24), 1995/1996: 34(1-24), 1996: 35(1-24), 1997: 36(1-24)

Preserved : 1998: 37(1-24), 1999: 38(1-24), 2000: 39(1-24), 2001: 40(1-24), 2002: 41(1, S 1, 2-24), 2003: 42(1-48), 2004: 43(1-48), 2005: 44(1-48), 2006: 45(1-48), 2007: 46(1-48), 2008: 47(1-52), 2009: 48(1-52), 2010: 49(1-52), 2011: 50(1-52), 2012: 51(1-52), 2013: 52(1-52), 2014: 53(1-52), 2015: 54(1-52), 2016: 55(1-52), 2017: 56(1-52), 2018: 57(1-52), 2019: 58(1-52), 2020: 59(1-52), 2021: 60(1-52), 2022: 61(1-52), 2023: 62(1-52), 2024: 63(1-48), 1999: 9999

Preserved : 1 (2 to 12); 2 (1 to 12); 3 (1 to 12); 4 (1 to 12); 5 (1 to 12); 6 (1 to 12); 7 (1 to 12); 8 (1 to 12); 9 (1 to 12); 10 (1 to 12); 11 (1 to 12); 12 (1 to 12); 13 (1 to 12); 14 (1 to 12); 15 (1 to 12); 16 (1 to 12); 17 (1 to 12); 18 (1 to 12); 19 (1 to 12); 20 (1 to 5, 6-7, 8 to 12); 21 (S1, 1 to 12); 22 (S1, 1 to 12); 23 (1 to 12); 24 (1 to 12); 25 (1 to 12); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (1 to 12); 33 (1 to 14, 15-16, 17 to 22, 23-24); 34 (1 to 12, 13-14, 15 to 22, 23-24); 35 (1 to 12, 13-14, 15 to 22, 23-24); 36 (1-2, 3 to 12, 13-14, 15 to 24); 37 (1-2, 3 to 12, 15 to 24); 38 (1‐2, 3 to 12, 13‐14, 15, 16, 21, 22, 24); 39 (1 to 24); 40 (1 to 24); 41 (S1, 1 to 24); 42 (1 to 48); 43 (1 to 48); 44 (1 to 48); 45 (1 to 48); 46 (1-2, 3 to 48); 47 (1 to 52); 48 (1 to 21, 23 to 52); 49 (1 to 35, 37 to 52); 50 (1 to 52); 51 (1 to 52); 52 (1 to 38); 53 (1, 4 to 52); 54 (1 to 52); 55 (1 to 18, 20 to 52); 56 (1 to 8, 10 to 31, 33 to 40, 42 to 52); 57 (1 to 52); 58 (1 to 52); 59 (1 to 52); 60 (1 to 52); 61 (1 to 52); 62 (1 to 47)