Month	Not Specified
1915-01-01	96
1915-02-01	97.
1915-03-01	100.
1915-04-01	101.
1915-05-01	99.
1915-06-01	101.
1915-07-01	99.
1915-08-01	101.
1915-09-01	100.
1915-10-01	100.
1915-11-01	100.
1915-12-01	101.
1916-01-01	101.
1916-02-01	104.
1916-03-01	105.
1916-04-01	104.
1916-05-01	106.
1916-06-01	105.
1916-07-01	101.
1916-08-01	106.
1916-09-01	107.
1916-10-01	106.
1916-11-01	106.
1916-12-01	107.
1917-01-01	105.
1917-02-01	104.
1917-03-01	106.
1917-04-01	101.
1917-05-01	105.
1917-06-01	103.
1917-07-01	102.
1917-08-01	104.
1917-09-01	103.
1917-10-01	104.
1917-11-01	106.
1917-12-01	104.
1918-01-01	96.
1918-02-01	97.
1918-03-01	105.
1918-04-01	108.
1918-05-01	111.
1918-06-01	111.
1918-07-01	110.
1918-08-01	110.
1918-09-01	112.
1918-10-01	112.
1918-11-01	105.
1918-12-01	114.
1919-01-01	110.
1919-02-01	110.
1919-03-01	112.
1919-04-01	109.
1919-05-01	109.
1919-06-01	110.
1919-07-01	111.
1919-08-01	112.
1919-09-01	117.
1919-10-01	112.
1919-11-01	111.
1919-12-01	115.
1920-01-01	112.
1920-02-01	111.
1920-03-01	115.
1920-04-01	111.
1920-05-01	114.
1920-06-01	114.
1920-07-01	111.
1920-08-01	116.
1920-09-01	115.
1920-10-01	116.
1920-11-01	113.
1920-12-01	116.
1921-01-01	111.
1921-02-01	113.
1921-03-01	115.
1921-04-01	114.
1921-05-01	117.
1921-06-01	117.
1921-07-01	115.
1921-08-01	115.
1921-09-01	115.
1921-10-01	112.
1921-11-01	111.
1921-12-01	111.
1922-01-01	116.
1922-02-01	114.
1922-03-01	117.
1922-04-01	117.
1922-05-01	119.
1922-06-01	121.
1922-07-01	119.
1922-08-01	122.
1922-09-01	124.
1922-10-01	122.
1922-11-01	123.
1922-12-01	125.
1923-01-01	124.
1923-02-01	125.
1923-03-01	128.
1923-04-01	128.
1923-05-01	132.
1923-06-01	132.
1923-07-01	128.
1923-08-01	127.
1923-09-01	128.
1923-10-01	130.
1923-11-01	128.
1923-12-01	130.
1924-01-01	128.
1924-02-01	131.
1924-03-01	131.
1924-04-01	131.
1924-05-01	129.
1924-06-01	125.
1924-07-01	120.
1924-08-01	123.
1924-09-01	124.
1924-10-01	125.
1924-11-01	124.
1924-12-01	126.
1925-01-01	122.
1925-02-01	129.
1925-03-01	130.
1925-04-01	128.
1925-05-01	129.
1925-06-01	129.
1925-07-01	126.
1925-08-01	127.
1925-09-01	125.
1925-10-01	130.
1925-11-01	129.
1925-12-01	130.
1926-01-01	125.
1926-02-01	130.
1926-03-01	132.
1926-04-01	131.
1926-05-01	130.
1926-06-01	131.
1926-07-01	128.
1926-08-01	132.
1926-09-01	130.
1926-10-01	133.
1926-11-01	130.
1926-12-01	130.
1927-01-01	124.
1927-02-01	133.
1927-03-01	135.
1927-04-01	135.
1927-05-01	135.
1927-06-01	131.
1927-07-01	129.
1927-08-01	133.
1927-09-01	130.
1927-10-01	131.
1927-11-01	128.
1927-12-01	131.
1928-01-01	128.
1928-02-01	136.
1928-03-01	137.
1928-04-01	135.
1928-05-01	136.
1928-06-01	136.
1928-07-01	133.
1928-08-01	136.
1928-09-01	133.
1928-10-01	138.
1928-11-01	134.
1928-12-01	136.