Month	Percent
1918-01-01	107.500
1918-02-01	106.600
1918-03-01	106.200
1918-04-01	107.200
1918-05-01	108.600
1918-06-01	110.900
1918-07-01	106.500
1918-08-01	105.200
1918-09-01	105.200
1918-10-01	106.500
1918-11-01	103.400
1918-12-01	105.500
1919-01-01	106.300
1919-02-01	104.200
1919-03-01	104.700
1919-04-01	105.200
1919-05-01	103.700
1919-06-01	103.300
1919-07-01	103.400
1919-08-01	102.700
1919-09-01	101.300
1919-10-01	103.600
1919-11-01	104.700
1919-12-01	101.200
1920-01-01	102.900
1920-02-01	101.500
1920-03-01	101.000
1920-04-01	101.800
1920-05-01	100.300
1920-06-01	100.400
1920-07-01	100.900
1920-08-01	100.700
1920-09-01	100.800
1920-10-01	100.800
1920-11-01	100.200
1920-12-01	100.600
1921-01-01	101.300
1921-02-01	101.500
1921-03-01	101.100
1921-04-01	101.000
1921-05-01	100.800
1921-06-01	102.800
1921-07-01	100.500
1921-08-01	100.100
1921-09-01	100.100
1921-10-01	100.400
1921-11-01	100.700
1921-12-01	100.500
1922-01-01	101.600
1922-02-01	102.600
1922-03-01	103.200
1922-04-01	101.900
1922-05-01	102.200
1922-06-01	101.800
1922-07-01	101.600
1922-08-01	99.8000
1922-09-01	98.9000
1922-10-01	101.800
1922-11-01	100.700
1922-12-01	100.900
1923-01-01	102.400
1923-02-01	101.600
1923-03-01	101.500
1923-04-01	101.800
1923-05-01	102.100
1923-06-01	102.200
1923-07-01	102.100
1923-08-01	101.300
1923-09-01	100.400
1923-10-01	100.800
1923-11-01	100.900
1923-12-01	100.800
1924-01-01	102.900
1924-02-01	101.200
1924-03-01	102.700
1924-04-01	102.200
1924-05-01	101.800
1924-06-01	104.000
1924-07-01	102.700
1924-08-01	102.200
1924-09-01	103.100
1924-10-01	101.100
1924-11-01	100.300
1924-12-01	102.600
1925-01-01	101.500
1925-02-01	102.000
1925-03-01	102.300
1925-04-01	101.000
1925-05-01	100.800
1925-06-01	101.100
1925-07-01	101.000
1925-08-01	102.000
1925-09-01	101.900
1925-10-01	101.300
1925-11-01	101.100
1925-12-01	101.500
1926-01-01	101.200
1926-02-01	101.200
1926-03-01	101.400
1926-04-01	101.400
1926-05-01	100.900
1926-06-01	101.100
1926-07-01	101.300
1926-08-01	101.100
1926-09-01	101.800
1926-10-01	100.200
1926-11-01	100.500
1926-12-01	102.400
1927-01-01	102.400
1927-02-01	101.800
1927-03-01	102.400
1927-04-01	101.900
1927-05-01	102.000
1927-06-01	102.700
1927-07-01	101.300
1927-08-01	101.900
1927-09-01	101.400
1927-10-01	102.400
1927-11-01	102.700
1927-12-01	101.600
1928-01-01	102.100
1928-02-01	101.800
1928-03-01	100.800
1928-04-01	101.500
1928-05-01	102.400
1928-06-01	101.300
1928-07-01	101.900
1928-08-01	101.800
1928-09-01	101.800
1928-10-01	101.600
1928-11-01	100.900
1928-12-01	102.000