1, 1956 76 7;            
2, 1957 76 7;        
3, 1958 75 7;        
4, 1959 74 7;            
5, 1960 73 6;            
6, 1961 73 6;            
7, 1962 74 7;            
8, 1963 74 7;        
9, 1964 77 7;            
10, 1965 82 7;            
11, 1966 83 8;            
12, 1967 85 8;            
13, 1968 88 9;        
14, 1969 92 9;        
15, 1970 93 10;        
16, 1971 92 10;            
17, 1972 86 12;            
18, 1973 84 12;            
19, 1974 81 13;            
20, 1975 75 18;            
21, 1976 79 45;            
22, 1977 74 32;            
23, 1978 72 28;        
24, 1979 72 26;                
25, 1980 74 27;            
26, 1981 76 28;        
27, 1982 77 29;                
28, 1983 75 28;            
29, 1984 70 28;        
30, 1985 73 25;            
31, 1986 72 25;            
32, 1987 70 24;            
33, 1988 71 25;            
34, 1989 70 25;            
35, 1990 69 25;            
36, 1991 66 26;        
37, 1992 66 26;            
38, 1993 64 27;        
39, 1994 62 27;        
40, 1995 61 28;        
41, 1996 58 29;            
42, 1997 58 28;        
43, 1998 59 27;    
44, 1999 60 28;            
45, 2000 59 26;        
46, 2001 53 29;        
47, 2002 54 27;            
48, 2003 53 27;            
49, 2004 55 26;        
50, 2005 54 26;