The first $900.00 of the annual pension or the full amount of the pension, if the same is less than $900.00 per year, shall be increased in accordance with a ratio of increase formula calculated in accordance with the percentage applicable for the calendar year of retirement, as follows:
Year of Ratio of Year of Ratio of
Retirement Increase Retirement Increase
1920 88% 1937 109%
1921 72% 1938 106%
1922 64% 1939 104%
1923 61% 1940 103%
1924 61% 1941 101%
1925 66% 1942 96%
1926 66% 1943 87%
1927 65% 1944 79%
1928 65% 1945 70%
1929 65% 1946 61%
1930 66% 1947 51%
1931 71% 1948 41%
1932 79% 1949 33%
1933 89% 1950 26%
1934 99% 1951 19%
1935 107% 1952 15%
1936 111% 1953 12%
1954 10%