The schedule of decade dollar amounts per year of credited service is: Formula Decades in Which Credited Service Was Accrued Ser- | Annual $ Increase Per Year of Credited Service vice 2000 – and later | $5 1990–1999 | $10 1980–1989 | $20 1970–1979 | $30 1960–1969 | $40 1950–1959 | $50 1940–1949 | $60 1930–1939 | $70 1920–1929 | $80 1910–1919 | $90
Formula Decades in Which Credited Service Was Accrued Ser- | Annual $ Increase Per Year of Credited Service vice 2000 – and later | $5 1990–1999 | $10 1980–1989 | $20 1970–1979 | $30 1960–1969 | $40 1950–1959 | $50 1940–1949 | $60 1930–1939 | $70 1920–1929 | $80 1910–1919 | $90