1921   0.888000                        
1922   0.892000                        
1923   0.926000                        
1924   0.965000                        
1925   0.975000                        
1926   0.997000                        
1927   1.02100                         
1928   1.03600                         
1929   1.04900                         
1930   1.07400                         
1931   1.06800                         
1932   1.08400                         
1933   1.00600                         
1934   1.04800                         
1935   1.07400