Holdings
33.1986,12; 34.1987,4u.11 - 35.1988,12; 36.1989,1u-3-12; 37.1990,1-11; 38.1991,7; 39.1992,4u.7u.9-12; 40.1993,1-3u.11-12; 41.1994,2u.4-5u.7-11; 42.1995,3u.6-7u.10 u.12; 43.1996,3u.5u.9; 46.1999,3u.6-7u.10; 47.2000,7/8-11; 48.2001,1/2u.4-5u.9u.12; 49.2002,3u.12; 50.2003,1/2; 51.2004,7/8-11; 52.2005,3-4u.7/8-10u.12; 53.2006,1-2u.7/8-9u.11-12; 54.2007,1/2-5u.7/8u.10-12; 57.2010,5; 58.2011,1-12; 59.2012, 1/2-12; 60.2013-