Month	Hours
1932-01-01	29.3000
1932-02-01	29.1000
1932-03-01	29.1000
1932-04-01	27.3000
1932-05-01	27.1000
1932-06-01	25.6000
1932-07-01	24.0000
1932-08-01	24.2000
1932-09-01	25.6000
1932-10-01	28.1000
1932-11-01	27.4000
1932-12-01	26.5000
1933-01-01	26.9000
1933-02-01	28.1000
1933-03-01	26.7000
1933-04-01	29.2000
1933-05-01	33.4000
1933-06-01	38.6000
1933-07-01	40.8000
1933-08-01	40.2000
1933-09-01	34.3000
1933-10-01	33.9000
1933-11-01	29.6000
1933-12-01	30.7000
1934-01-01	30.0000
1934-02-01	32.3000
1934-03-01	34.9000
1934-04-01	36.1000
1934-05-01	37.3000
1934-06-01	37.9000
1934-07-01	28.7000
1934-08-01	27.7000
1934-09-01	24.9000
1934-10-01	26.0000
1934-11-01	27.2000
1934-12-01	29.6000
1935-01-01	33.0000
1935-02-01	36.9000
1935-03-01	36.2000
1935-04-01	35.8000
1935-05-01	35.3000
1935-06-01	33.5000
1935-07-01	31.2000
1935-08-01	35.6000
1935-09-01	36.7000
1935-10-01	37.2000
1935-11-01	37.1000
1935-12-01	39.6000
1936-01-01	37.7000
1936-02-01	38.2000
1936-03-01	40.6000
1936-04-01	42.2000
1936-05-01	42.7000
1936-06-01	42.6000
1936-07-01	40.0000
1936-08-01	41.6000
1936-09-01	41.2000
1936-10-01	42.5000
1936-11-01	43.6000
1936-12-01	43.6000
1937-01-01	42.8000
1937-02-01	42.8000
1937-03-01	43.3000
1937-04-01	42.4000
1937-05-01	41.1000
1937-06-01	40.3000
1937-07-01	38.2000
1937-08-01	40.6000
1937-09-01	37.6000
1937-10-01	35.8000
1937-11-01	30.8000
1937-12-01	27.4000
1938-01-01	25.0000
1938-02-01	26.4000
1938-03-01	27.1000
1938-04-01	27.7000
1938-05-01	27.6000
1938-06-01	26.5000
1938-07-01	26.0000
1938-08-01	29.4000
1938-09-01	29.8000
1938-10-01	32.0000
1938-11-01	33.7000
1938-12-01	33.9000
1939-01-01	33.8000
1939-02-01	34.2000
1939-03-01	34.5000
1939-04-01	33.7000
1939-05-01	32.9000
1939-06-01	33.7000
1939-07-01	32.1000
1939-08-01	35.7000
1939-09-01	35.2000
1939-10-01	40.0000
1939-11-01	39.1000
1939-12-01	38.9000
1940-01-01	37.0000
1940-02-01	35.3000
1940-03-01	34.6000
1940-04-01	34.3000
1940-05-01	35.4000
1940-06-01	37.0000
1940-07-01	36.4000
1940-08-01	38.1000
1940-09-01	38.4000
1940-10-01	38.7000
1940-11-01	39.0000
1940-12-01	40.3000
1941-01-01	39.0000
1941-02-01	39.8000
1941-03-01	40.0000
1941-04-01	39.6000
1941-05-01	40.2000
1941-06-01	40.8000
1941-07-01	38.6000
1941-08-01	40.0000
1941-09-01	38.9000
1941-10-01	39.8000
1941-11-01	40.0000
1941-12-01	40.0000
1942-01-01	39.8000
1942-02-01	40.8000
1942-03-01	41.1000
1942-04-01	40.5000
1942-05-01	40.9000
1942-06-01	40.9000
1942-07-01	40.1000
1942-08-01	41.1000
1942-09-01	40.8000
1942-10-01	41.9000
1942-11-01	42.9000
1942-12-01	42.6000
1943-01-01	42.8000
1943-02-01	43.6000
1943-03-01	43.9000
1943-04-01	44.4000
1943-05-01	45.0000
1943-06-01	45.5000
1943-07-01	45.0000
1943-08-01	47.0000
1943-09-01	46.4000
1943-10-01	47.5000
1943-11-01	46.7000
1943-12-01	46.2000
1944-01-01	46.6000
1944-02-01	47.3000
1944-03-01	47.1000
1944-04-01	47.0000
1944-05-01	47.3000
1944-06-01	47.6000
1944-07-01	47.0000
1944-08-01	47.5000
1944-09-01	47.4000
1944-10-01	48.3000
1944-11-01	47.7000
1944-12-01	48.1000
1945-01-01	47.3000
1945-02-01	47.2000
1945-03-01	47.9000
1945-04-01	47.9000
1945-05-01	47.5000
1945-06-01	46.5000
1945-07-01	46.1000
1945-08-01	43.1000
1945-09-01	41.3000
1945-10-01	41.4000
1945-11-01	41.9000
1945-12-01	42.0000
1946-01-01	40.7000
1946-02-01	30.5000
1946-03-01	37.9000
1946-04-01	37.6000
1946-05-01	35.8000
1946-06-01	36.1000
1946-07-01	36.5000
1946-08-01	38.2000
1946-09-01	38.0000
1946-10-01	38.6000
1946-11-01	38.8000
1946-12-01	37.0000
1947-01-01	38.3000
1947-02-01	38.5000
1947-03-01	38.9000
1947-04-01	39.3000
1947-05-01	39.0000
1947-06-01	39.7000
1947-07-01	37.7000
1947-08-01	39.3000
1947-09-01	38.9000
1947-10-01	39.2000
1947-11-01	39.5000
1947-12-01	39.6000
1948-01-01	39.6000
1948-02-01	39.5000
1948-03-01	39.6000
1948-04-01	38.6000
1948-05-01	39.9000
1948-06-01	39.4000
1948-07-01	38.8000
1948-08-01	39.7000
1948-09-01	39.3000
1948-10-01	40.3000
1948-11-01	40.0000
1948-12-01	39.8000
1949-01-01	40.0000
1949-02-01	39.9000
1949-03-01	39.5000
1949-04-01	39.4000
1949-05-01	38.7000
1949-06-01	37.7000
1949-07-01	36.4000
1949-08-01	37.6000
1949-09-01	37.1000
1949-10-01	34.0000
1949-11-01	34.4000
1949-12-01	39.3000
1950-01-01	39.3000
1950-02-01	39.3000
1950-03-01	37.5000
1950-04-01	40.0000
1950-05-01	39.7000
1950-06-01	39.8000
1950-07-01	39.9000
1950-08-01	40.1000
1950-09-01	40.2000
1950-10-01	40.8000
1950-11-01	40.8000
1950-12-01	41.1000
1951-01-01	40.6000
1951-02-01	39.9000
1951-03-01	41.0000
1951-04-01	41.3000
1951-05-01	40.8000
1951-06-01	41.4000
1951-07-01	40.8000
1951-08-01	40.2000
1951-09-01	41.0000
1951-10-01	40.4000
1951-11-01	41.0000
1951-12-01	41.9000
1952-01-01	40.8000
1952-02-01	40.6000
1952-03-01	41.4000
1952-04-01	37.4000
1952-05-01	37.4000
1952-06-01	36.8000
1952-07-01	37.7000
1952-08-01	40.3000
1952-09-01	40.9000
1952-10-01	40.6000
1952-11-01	41.1000
1952-12-01	41.0000
1953-01-01	41.4000
1953-02-01	40.9000
1953-03-01	40.9000
1953-04-01	40.3000
1953-05-01	41.1000
1953-06-01	40.9000
1953-07-01	40.8000
1953-08-01	41.0000
1953-09-01	40.0000
1953-10-01	40.2000
1953-11-01	39.6000
1953-12-01	39.2000
1954-01-01	38.9000
1954-02-01	37.8000
1954-03-01	36.8000
1954-04-01	37.1000
1954-05-01	37.6000
1954-06-01	38.0000
1954-07-01	37.5000
1954-08-01	37.3000
1954-09-01	37.4000
1954-10-01	37.7000
1954-11-01	38.8000
1954-12-01	39.1000
1955-01-01	39.7000
1955-02-01	39.8000
1955-03-01	40.2000
1955-04-01	40.5000
1955-05-01	40.9000
1955-06-01	41.0000
1955-07-01	40.1000
1955-08-01	39.9000
1955-09-01	41.4000
1955-10-01	40.6000
1955-11-01	40.7000
1955-12-01	41.3000
1956-01-01	41.8000
1956-02-01	40.4000
1956-03-01	40.3000
1956-04-01	40.4000
1956-05-01	40.6000
1956-06-01	40.7000
1956-07-01	38.9000
1956-08-01	38.7000
1956-09-01	41.2000
1956-10-01	40.5000