Monthly Hours
1921-07-01 193.900
1921-08-01 205.600
1921-09-01 195.500
1921-10-01 204.300
1921-11-01 193.800
1921-12-01 195.600
1922-01-01 194.000
1922-02-01 180.600
1922-03-01 206.600
1922-04-01 192.400
1922-05-01 201.800
1922-06-01 200.400
1922-07-01 200.600
1922-08-01 212.600
1922-09-01 202.200
1922-10-01 208.700
1922-11-01 200.300
1922-12-01 200.700
1923-01-01 207.000
1923-02-01 184.900
1923-03-01 211.400
1923-04-01 199.900
1923-05-01 206.800
1923-06-01 202.300
1923-07-01 199.900
1923-08-01 207.600
1923-09-01 192.500
1923-10-01 211.000
1923-11-01 194.800
1923-12-01 193.200
1924-01-01 202.800
1924-02-01 190.100
1924-03-01 204.100
1924-04-01 199.700
1924-05-01 202.000
1924-06-01 193.400
1924-07-01 200.000
1924-08-01 199.900
1924-09-01 197.200
1924-10-01 210.600
1924-11-01 191.900
1924-12-01 201.600
1925-01-01 204.000
1925-02-01 184.200
1925-03-01 204.400
1925-04-01 200.500
1925-05-01 199.000
1925-06-01 201.200
1925-07-01 203.300
1925-08-01 202.400
1925-09-01 197.400
1925-10-01 209.000
1925-11-01 193.500
1925-12-01 201.900
1926-01-01 198.300
1926-02-01 184.000
1926-03-01 209.900
1926-04-01 201.000
1926-05-01 199.900
1926-06-01 201.600
1926-07-01 202.200
1926-08-01 203.700
1926-09-01 197.400
1926-10-01 204.500
1926-11-01 197.600
1926-12-01 202.600
1927-01-01 199.600
1927-02-01 182.900
1927-03-01 209.500
1927-04-01 200.900
1927-05-01 200.200
1927-06-01 201.500
1927-07-01 196.300
1927-08-01 207.500
1927-09-01 196.600
1927-10-01 204.100
1927-11-01 195.400
1927-12-01 198.600
1928-01-01 198.700
1928-02-01 189.700
1928-03-01 208.000
1928-04-01 196.100
1928-05-01 204.300
1928-06-01 199.500
1928-07-01 197.500
1928-08-01 207.500
1928-09-01 192.100
1928-10-01 210.900
1928-11-01 196.600
1928-12-01 194.800
1929-01-01 204.000
1929-02-01 183.900
1929-03-01 204.500
1929-04-01 202.900
1929-05-01 205.200
1929-06-01 197.000
1929-07-01 204.100
1929-08-01 207.500
1929-09-01 192.800
1929-10-01 209.900
1929-11-01 194.900
1929-12-01 194.900
1930-01-01 201.500
1930-02-01 182.200
1930-03-01 201.000
1930-04-01 199.200
1930-05-01 199.100
1930-06-01 191.400
1930-07-01 195.100
1930-08-01 194.300
1930-09-01 189.000
1930-10-01 200.700
1930-11-01 182.400
1930-12-01 189.800
1931-01-01 190.900
1931-02-01 172.500
1931-03-01 192.200
1931-04-01 190.300
1931-05-01 187.700
1931-06-01 188.500
1931-07-01 189.000
1931-08-01 185.500
1931-09-01 180.700
1931-10-01 188.400
1931-11-01 172.200
1931-12-01 178.700
1932-01-01 175.400
1932-02-01 171.000
1932-03-01 186.800
1932-04-01 178.600
1932-05-01 177.000
1932-06-01 176.600
1932-07-01 170.000
1932-08-01 178.200
1932-09-01 169.800
1932-10-01 176.400
1932-11-01 170.300
1932-12-01 172.200
1933-01-01 172.400
1933-02-01 157.400
1933-03-01 175.500
1933-04-01 167.300
1933-05-01 177.900
1933-06-01 177.600
1933-07-01 177.900
1933-08-01 186.600
1933-09-01 176.100
1933-10-01 183.900
1933-11-01 173.700
1933-12-01 173.700
1934-01-01 181.300
1934-02-01 165.400
1934-03-01 188.000
1934-04-01 177.600
1934-05-01 185.800
1934-06-01 183.100
1934-07-01 180.400
1934-08-01 187.900
1934-09-01 174.500
1934-10-01 190.300
1934-11-01 177.000
1934-12-01 177.900
1935-01-01 188.100
1935-02-01 168.700
1935-03-01 185.300
1935-04-01 183.000
1935-05-01 186.200
1935-06-01 178.700
1935-07-01 184.400
1935-08-01 188.100
1935-09-01 177.000
1935-10-01 194.600
1935-11-01 180.400
1935-12-01 183.500
1936-01-01 193.000
1936-02-01 182.100
1936-03-01 193.200
1936-04-01 189.700
1936-05-01 187.300
1936-06-01 189.500
1936-07-01 193.400
1936-08-01 191.400
1936-09-01 188.500
1936-10-01 200.100
1936-11-01 184.200
1936-12-01 195.100
1937-01-01 189.500
1937-02-01 176.000
1937-03-01 202.200
1937-04-01 194.000
1937-05-01 192.000
1937-06-01 194.000
1937-07-01 194.500
1937-08-01 193.400
1937-09-01 188.300
1937-10-01 193.900
1937-11-01 184.500
1937-12-01 188.900
1938-01-01 185.500
1938-02-01 171.100
1938-03-01 195.900
1938-04-01 186.100
1938-05-01 186.300
1938-06-01 189.000
1938-07-01 186.200
1938-08-01 197.300
1938-09-01 187.900
1938-10-01 195.300
1938-11-01 187.600
1938-12-01 192.500
1939-01-01 191.100
1939-02-01 174.800
1939-03-01 200.100
1939-04-01 185.500
1939-05-01 195.600
1939-06-01 193.600
1939-07-01 189.000
1939-08-01 199.500
1939-09-01 190.800
1939-10-01 200.200
1939-11-01 190.900
1939-12-01 189.300
1940-01-01 197.900
1940-02-01 181.100
1940-03-01 193.900
1940-04-01 193.500
1940-05-01 195.900
1940-06-01 188.800
1940-07-01 196.900
1940-08-01 200.800
1940-09-01 187.000
1940-10-01 203.700
1940-11-01 190.300
1940-12-01 193.500
1941-01-01 200.000
1941-02-01 180.400
1941-03-01 200.900
1941-04-01 197.200
1941-05-01 202.200
1941-06-01 197.400
1941-07-01 203.100
1941-08-01 202.500
1941-09-01 196.900
1941-10-01 208.900
1941-11-01 191.200
1941-12-01 202.100
1942-01-01 203.900
1942-02-01 183.800
1942-03-01 205.200
1942-04-01 200.400
1942-05-01 198.700
1942-06-01 199.900
1942-07-01 200.900
1942-08-01 203.600
1942-09-01 197.700
1942-10-01 210.400
1942-11-01 194.700
1942-12-01 204.100
1943-01-01 200.500
1943-02-01 186.800
1943-03-01 211.300
1943-04-01 201.900
1943-05-01 200.500
1943-06-01 200.200
1943-07-01 201.600
1943-08-01 205.000