Month	Million Bricks
1919-01-01	5.00000
1919-02-01	4.70000
1919-03-01	7.90000
1919-04-01	11.3000
1919-05-01	18.1000
1919-06-01	18.4000
1919-07-01	19.7000
1919-08-01	22.8000
1919-09-01	22.1000
1919-10-01	23.0000
1919-11-01	20.1000
1919-12-01	14.6000
1920-01-01	17.3000
1920-02-01	16.8000
1920-03-01	21.2000
1920-04-01	21.4000
1920-05-01	22.3000
1920-06-01	21.4000
1920-07-01	20.4000
1920-08-01	18.8000
1920-09-01	15.4000
1920-10-01	17.6000
1920-11-01	14.7000
1920-12-01	12.9000
1921-01-01	7.00000
1921-02-01	5.40000
1921-03-01	7.40000
1921-04-01	13.8000
1921-05-01	19.2000
1921-06-01	22.3000
1921-07-01	21.8000
1921-08-01	23.9000
1921-09-01	19.6000
1921-10-01	21.5000
1921-11-01	18.6000
1921-12-01	16.2000
1922-01-01	11.4000
1922-02-01	10.5000
1922-03-01	19.8000
1922-04-01	22.6000
1922-05-01	29.3000
1922-06-01	28.7000
1922-07-01	21.9000
1922-08-01	25.8000
1922-09-01	24.1000
1922-10-01	28.6000
1922-11-01	23.7000
1922-12-01	23.3000
1923-01-01	20.1000
1923-02-01	16.0000
1923-03-01	23.0000
1923-04-01	23.5000
1923-05-01	26.1000
1923-06-01	24.6000
1923-07-01	25.5000
1923-08-01	26.8000
1923-09-01	21.9000
1923-10-01	25.8000
1923-11-01	21.6000
1923-12-01	20.9000
1924-01-01	17.4000
1924-02-01	19.3000
1924-03-01	21.1000
1924-04-01	26.4000
1924-05-01	28.0000
1924-06-01	25.9000
1924-07-01	25.6000
1924-08-01	27.6000
1924-09-01	24.8000
1924-10-01	26.9000
1924-11-01	22.6000
1924-12-01	22.9000
1925-01-01	17.9000
1925-02-01	13.7000
1925-03-01	19.4000
1925-04-01	23.2000
1925-05-01	27.9000
1925-06-01	25.1000
1925-07-01	25.5000