Holdings
4.1987,10-18u.20-24u.26-44u.46-48u.50u.52; 5.1988,5u.9-11u.13-16u.18-22u.24-29u.31/32-41u.43-46u.48-50; 6.1989,1/3-9u.11-13u.14u.18u.24-31/32u.41u.43-45u-50; 7.1990,1/3-7u.9-18u.20-22u.25u.27-36u.38-43u.45-47u.51; 8.1991,5-6u.8-12u.14u.16-17u.19-20u.22.23u.27u.29/30-35u.38-41u.43-51; 9.1992,4u.6-9u.11-15u.18-22u.24u.26u.28-29u.46-49; 10.1993,7-18u.20u.22-24u.26u.31/32u.34-35u.44-50; 11.1994,4-11u.13-45u.47-51; 12.1995,1/3-13u.15u.17u-30/31u.34-51; 13.1996,1/3u.6-7u.9-11u.13u.15-20u.22-24u.28-37u.39-51; 14.1997,3u.5-30u.33u.35-51; 15.1998,1-25u.27-28u.30u.33u.35-39u.42-51; 16.1999,1-28u.31/32-50; 17.2000,2-51;18.2001,3-51;19.2002,1-27u.30-51; 20.2003,1-20u.22-33u.36-51; 21.2004,3-29u.32-51; 22.2005,2-29u.32-51; 23.2006,1-28u.32-51; 24.2007,2-27u.31-51; 25.2008,2-26u.30-51; 26.2009,2-28u.32-51; 27.2010,1-27u.31-51; 28.2011,1-27u.31-51; 29.2012,2-26u.30-51; 30.2013,2u.4-27u.31-51; 31.2014,1-32u.35-51; 32.2015,3-31u.36-51; 33.2016,2-29u.33-51.
