Holdings
54.1986,2; 58.1990,3/4; 1991,1/2; 1992,1/2; 1993 - 1994; 1995,2; 1996,1,4; 1997,3; 1998,4; 1999,1-2; 2000,1,3; 2001,2; 2002,4; 2003; 2004,2-4; 2005 - 2006; 2007,2; 2008,2; 2009,1; 2018,3; 2019,1,3,4; 2020,1,2,3; 2021,1,2,4; 2022,2 ; 2023,2-4