Holdings
2=59.1951,9/10-11/12; 4=60.1952,5/6; 5=61.1953,9-10; 6=62.1954,1-2u5-8; 7=63.1955,7-8; 8=64.1956,1-4u.11-12; 10=66.1958,1/2; 11=68.1960,2; 12=69.1961,1-2; 13=70.1962,2u.6; 14=71.1963,1; 14=71,5; 15=75.1964,6; 17=74.1966,2u.4u.6; 18=75.1967, 3u.5; 20=77.1969,2; 21=78.1970,1