Month Number Per 100 Persons 1919-01-01 9.43000 1919-02-01 5.81000 1919-03-01 5.73000 1919-04-01 5.69000 1919-05-01 6.56000 1919-06-01 8.69000 1919-07-01 7.10000 1919-08-01 9.01000 1919-09-01 9.19000 1919-10-01 8.75000 1919-11-01 7.99000 1919-12-01 6.42000 1920-01-01 9.72000 1920-02-01 9.28000 1920-03-01 13.1900 1920-04-01 12.7900 1920-05-01 10.1200 1920-06-01 10.7500 1920-07-01 11.9200 1920-08-01 12.0700 1920-09-01 10.7500 1920-10-01 8.74000 1920-11-01 6.93000 1920-12-01 7.46000 1921-01-01 6.21000 1921-02-01 4.12000 1921-03-01 5.59000 1921-04-01 4.91000 1921-05-01 4.02000 1921-06-01 4.68000 1921-07-01 4.27000 1921-08-01 4.34000 1921-09-01 5.40000 1921-10-01 3.32000 1921-11-01 2.71000 1921-12-01 2.89000 1922-01-01 2.75000 1922-02-01 2.56000 1922-03-01 3.40000 1922-04-01 4.18000 1922-05-01 5.63000 1922-06-01 6.20000 1922-07-01 6.17000 1922-08-01 7.14000 1922-09-01 7.89000 1922-10-01 7.00000 1922-11-01 6.22000 1922-12-01 4.51000 1923-01-01 5.39000 1923-02-01 6.40000 1923-03-01 8.71000 1923-04-01 10.7100 1923-05-01 9.88000 1923-06-01 9.49000 1923-07-01 9.09000 1923-08-01 7.98000 1923-09-01 8.59000 1923-10-01 6.06000 1923-11-01 4.75000 1923-12-01 2.97000 1924-01-01 3.63000 1924-02-01 2.91000 1924-03-01 4.91000 1924-04-01 5.94000 1924-05-01 5.23000 1924-06-01 3.86000 1924-07-01 3.14000 1924-08-01 3.27000 1924-09-01 3.70000 1924-10-01 3.41000 1924-11-01 2.83000 1924-12-01 2.52000 1925-01-01 3.06000 1925-02-01 2.80000 1925-03-01 4.03000 1925-04-01 5.20000 1925-05-01 4.43000 1925-06-01 4.23000 1925-07-01 4.06000 1925-08-01 4.17000 1925-09-01 5.09000 1925-10-01 4.63000 1925-11-01 3.37000 1925-12-01 2.96000 1926-01-01 3.31000 1926-02-01 3.10000 1926-03-01 4.30000 1926-04-01 5.00000 1926-05-01 4.31000 1926-06-01 3.80000 1926-07-01 4.51000 1926-08-01 4.40000 1926-09-01 4.81000 1926-10-01 3.70000 1926-11-01 3.30000 1926-12-01 2.60000 1927-01-01 3.47000 1927-02-01 2.83000 1927-03-01 3.61000 1927-04-01 3.97000 1927-05-01 3.80000 1927-06-01 3.61000 1927-07-01 3.03000 1927-08-01 3.09000 1927-09-01 3.80000 1927-10-01 3.36000 1927-11-01 2.59000 1927-12-01 2.31000 1928-01-01 2.36000 1928-02-01 2.19000 1928-03-01 2.79000 1928-04-01 3.14000 1928-05-01 3.53000 1928-06-01 3.25000 1928-07-01 3.23000 1928-08-01 3.59000 1928-09-01 4.16000 1928-10-01 3.56000 1928-11-01 2.90000 1928-12-01 2.48000 1929-01-01 3.08000 1929-02-01 3.20000 1929-03-01 4.18000 1929-04-01 4.58000 1929-05-01 4.43000 1929-06-01 4.20000 1929-07-01 3.95000 1929-08-01 4.12000 1929-09-01 4.16000 1929-10-01 3.64000 1929-11-01 3.16000 1929-12-01 2.49000 1930-01-01 2.39000 1930-02-01 2.53000 1930-03-01 2.71000 1930-04-01 2.88000 1930-05-01 2.95000 1930-06-01 2.53000 1930-07-01 2.49000 1930-08-01 2.38000 1930-09-01 2.47000 1930-10-01 2.36000 1930-11-01 1.86000 1930-12-01 1.50000