Month	Thousands Of Inner Tubes
1921-01-01	1417.00
1921-02-01	1532.00
1921-03-01	2224.00
1921-04-01	2669.00
1921-05-01	3154.00
1921-06-01	4347.00
1921-07-01	4847.00
1921-08-01	5121.00
1921-09-01	3552.00
1921-10-01	2719.00
1921-11-01	2071.00
1921-12-01	3407.00
1922-01-01	2552.00
1922-02-01	2310.00
1922-03-01	2848.00
1922-04-01	3162.00
1922-05-01	3995.00
1922-06-01	5391.00
1922-07-01	4905.00
1922-08-01	5733.00
1922-09-01	4797.00
1922-10-01	4618.00
1922-11-01	4165.00
1922-12-01	5197.00
1923-01-01	5091.00
1923-02-01	4085.00
1923-03-01	5214.00
1923-04-01	4824.00
1923-05-01	4651.00
1923-06-01	4882.00
1923-07-01	5374.00
1923-08-01	5800.00
1923-09-01	4966.00
1923-10-01	4848.00
1923-11-01	4604.00
1923-12-01	4732.00
1924-01-01	4723.00
1924-02-01	4530.00
1924-03-01	4667.00
1924-04-01	4782.00
1924-05-01	4865.00
1924-06-01	5286.00
1924-07-01	7190.00
1924-08-01	7493.00
1924-09-01	6908.00
1924-10-01	5700.00
1924-11-01	6332.00
1924-12-01	5540.00
1925-01-01	5576.00
1925-02-01	4971.00
1925-03-01	5711.00
1925-04-01	6704.00
1925-05-01	8040.00
1925-06-01	9032.00
1925-07-01	9140.00
1925-08-01	6923.00
1925-09-01	6665.00
1925-10-01	7845.00
1925-11-01	5406.00
1925-12-01	4991.00
1926-01-01	3723.00
1926-02-01	3736.00
1926-03-01	4987.00
1926-04-01	5051.00
1926-05-01	6304.00
1926-06-01	6898.00
1926-07-01	8569.00
1926-08-01	9579.00
1926-09-01	7762.00
1926-10-01	5474.00
1926-11-01	4046.00
1926-12-01	5463.00
1927-01-01	6016.00
1927-02-01	5120.00
1927-03-01	6158.00
1927-04-01	6359.00
1927-05-01	6140.00
1927-06-01	6832.00
1927-07-01	7070.00
1927-08-01	7982.00
1927-09-01	6758.00
1927-10-01	5025.00
1927-11-01	4723.00
1927-12-01	4712.00
1928-01-01	6078.00
1928-02-01	5437.00
1928-03-01	5738.00
1928-04-01	5710.00
1928-05-01	6308.00
1928-06-01	7146.00
1928-07-01	8736.00
1928-08-01	9358.00
1928-09-01	7154.00
1928-10-01	5662.00
1928-11-01	5002.00
1928-12-01	4858.00
1929-01-01	6789.00
1929-02-01	4948.00
1929-03-01	6317.00
1929-04-01	6716.00
1929-05-01	6598.00
1929-06-01	6515.00
1929-07-01	7606.00
1929-08-01	7672.00
1929-09-01	5859.00
1929-10-01	4689.00
1929-11-01	3480.00
1929-12-01	3404.00
1930-01-01	4857.00
1930-02-01	4337.00
1930-03-01	4727.00
1930-04-01	4848.00
1930-05-01	5074.00
1930-06-01	5265.00
1930-07-01	5855.00
1930-08-01	5762.00
1930-09-01	4541.00
1930-10-01	3472.00
1930-11-01	2788.00
1930-12-01	3412.00
1931-01-01	4062.00
1931-02-01	3400.00
1931-03-01	3789.00
1931-04-01	4636.00
1931-05-01	5281.00
1931-06-01	5397.00
1931-07-01	5831.00
1931-08-01	5301.00
1931-09-01	4150.00
1931-10-01	2813.00
1931-11-01	2595.00
1931-12-01	2767.00
1932-01-01	3504.00
1932-02-01	2728.00
1932-03-01	2686.00
1932-04-01	3385.00
1932-05-01	3867.00
1932-06-01	9019.00
1932-07-01	2160.00
1932-08-01	2503.00
1932-09-01	3098.00
1932-10-01	1659.00
1932-11-01	1578.00
1932-12-01	1724.00
1933-01-01	2535.00
1933-02-01	2102.00
1933-03-01	1902.00
1933-04-01	3051.00
1933-05-01	4463.00
1933-06-01	5778.00
1933-07-01	5211.00
1933-08-01	4687.00
1933-09-01	3472.00
1933-10-01	2676.00
1933-11-01	2103.00
1933-12-01	3410.00
1934-01-01	3199.00
1934-02-01	3323.00
1934-03-01	4118.00
1934-04-01	4342.00
1934-05-01	4902.00
1934-06-01	5309.00
1934-07-01	4323.00
1934-08-01	4198.00
1934-09-01	3024.00
1934-10-01	2689.00
1934-11-01	2767.00
1934-12-01	2850.00
1935-01-01	3722.00
1935-02-01	3362.00
1935-03-01	4168.00
1935-04-01	4453.00
1935-05-01	3451.00
1935-06-01	4024.00
1935-07-01	5269.00
1935-08-01	4556.00
1935-09-01	3426.00
1935-10-01	3987.00
1935-11-01	3687.00
1935-12-01	3962.00
1936-01-01	4152.00
1936-02-01	3433.00
1936-03-01	3781.00
1936-04-01	4729.00
1936-05-01	4901.00
1936-06-01	5483.00
1936-07-01	5737.00
1936-08-01	5117.00
1936-09-01	4215.00
1936-10-01	4093.00
1936-11-01	3980.00
1936-12-01	4801.00
1937-01-01	4424.00
1937-02-01	4570.00
1937-03-01	5612.00
1937-04-01	5365.00
1937-05-01	5066.00
1937-06-01	5064.00
1937-07-01	5084.00
1937-08-01	4721.00
1937-09-01	3096.00
1937-10-01	3525.00
1937-11-01	2359.00
1937-12-01	2881.00
1938-01-01	2527.00
1938-02-01	2216.00
1938-03-01	2645.00
1938-04-01	2860.00
1938-05-01	2974.00
1938-06-01	3730.00
1938-07-01	3519.00
1938-08-01	3744.00
1938-09-01	3980.00
1938-10-01	4101.00
1938-11-01	4138.00
1938-12-01	3859.00
1939-01-01	3943.00
1939-02-01	3401.00
1939-03-01	4078.00
1939-04-01	3940.00
1939-05-01	4034.00
1939-06-01	5036.00
1939-07-01	4150.00
1939-08-01	4309.00
1939-09-01	4991.00
1939-10-01	4948.00
1939-11-01	3967.00
1939-12-01	4394.00
1940-01-01	3761.00
1940-02-01	3805.00
1940-03-01	4117.00
1940-04-01	4547.00
1940-05-01	4745.00
1940-06-01	5686.00
1940-07-01	3793.00
1940-08-01	3600.00
1940-09-01	3952.00
1940-10-01	4876.00
1940-11-01	4690.00
1940-12-01	4644.00
1941-01-01	4474.00
1941-02-01	4610.00
1941-03-01	5181.00
1941-04-01	5358.00
1941-05-01	6310.00
1941-06-01	6908.00
1941-07-01	5917.00
1941-08-01	4780.00
1941-09-01	4792.00
1941-10-01	5150.00
1941-11-01	3829.00
1941-12-01	2393.00
1942-01-01	1281.00
1942-02-01	1112.00
1942-03-01	988.000
1942-04-01	1341.00
1942-05-01	1170.00
1942-06-01	1221.00
1942-07-01	1193.00
1942-08-01	1166.00
1942-09-01	1273.00
1942-10-01	1360.00
1942-11-01	1072.00
1942-12-01	1089.00
1943-01-01	1335.00
1943-02-01	1630.00
1943-03-01	1976.00
1943-04-01	1598.00
1943-05-01	1600.00
1943-06-01	1595.00
1943-07-01	1422.00
1943-08-01	1463.00
1943-09-01	1559.00
1943-10-01	1715.00
1943-11-01	1563.00
1943-12-01	1557.00
1944-01-01	1581.00
1944-02-01	1577.00
1944-03-01	1773.00
1944-04-01	1794.00
1944-05-01	2095.00
1944-06-01	2650.00
1944-07-01	2734.00
1944-08-01	2592.00
1944-09-01	2463.00
1944-10-01	2612.00
1944-11-01	2619.00
1944-12-01	2734.00
1945-01-01	3134.00
1945-02-01	3173.00
1945-03-01	3616.00
1945-04-01	3367.00
1945-05-01	3154.00
1945-06-01	3054.00
1945-07-01	3021.00
1945-08-01	3104.00
1945-09-01	3155.00
1945-10-01	3885.00
1945-11-01	4003.00
1945-12-01	3639.00
1946-01-01	4282.00
1946-02-01	4347.00
1946-03-01	5610.00
1946-04-01	6136.00
1946-05-01	6412.00
1946-06-01	5942.00
1946-07-01	6170.00
1946-08-01	6918.00
1946-09-01	6702.00
1946-10-01	8408.00
1946-11-01	7260.00
1946-12-01	7923.00
1947-01-01	6757.00
1947-02-01	6001.00
1947-03-01	6165.00
1947-04-01	5520.00
1947-05-01	5465.00
1947-06-01	5640.00
1947-07-01	6158.00
1947-08-01	6322.00
1947-09-01	7098.00
1947-10-01	7446.00
1947-11-01	6256.00
1947-12-01	5262.00
1948-01-01	5035.00
1948-02-01	4429.00
1948-03-01	5185.00
1948-04-01	5759.00
1948-05-01	5444.00
1948-06-01	6777.00
1948-07-01	6818.00
1948-08-01	6928.00
1948-09-01	6210.00
1948-10-01	6064.00
1948-11-01	5126.00
1948-12-01	4723.00
1949-01-01	4872.00
1949-02-01	4361.00
1949-03-01	5118.00
1949-04-01	5344.00
1949-05-01	5237.00
1949-06-01	6345.00
1949-07-01	6297.00
1949-08-01	6600.00
1949-09-01	5852.00
1949-10-01	5489.00
1949-11-01	4163.00
1949-12-01	4179.00
1950-01-01	5365.00
1950-02-01	5667.00
1950-03-01	5803.00
1950-04-01	6152.00
1950-05-01	6755.00
1950-06-01	8544.00
1950-07-01	9738.00
1950-08-01	9257.00
1950-09-01	7586.00
1950-10-01	7378.00
1950-11-01	6099.00
1950-12-01	6379.00
1951-01-01	6570.00
1951-02-01	5890.00
1951-03-01	6575.00
1951-04-01	5605.00
1951-05-01	5592.00
1951-06-01	5500.00
1951-07-01	5042.00
1951-08-01	5729.00
1951-09-01	5042.00
1951-10-01	5603.00
1951-11-01	4803.00
1951-12-01	3556.00
1952-01-01	5484.00
1952-02-01	4971.00
1952-03-01	5037.00
1952-04-01	5322.00
1952-05-01	5348.00
1952-06-01	6056.00
1952-07-01	4499.00
1952-08-01	5423.00
1952-09-01	5981.00
1952-10-01	5892.00
1952-11-01	4573.00
1952-12-01	4863.00
1953-01-01	7584.00
1953-02-01	6396.00
1953-03-01	6586.00
1953-04-01	6752.00
1953-05-01	6577.00
1953-06-01	6900.00
1953-07-01	7294.00
1953-08-01	6523.00
1953-09-01	5714.00
1953-10-01	5956.00
1953-11-01	4003.00
1953-12-01	4622.00
1954-01-01	6852.00
1954-02-01	5625.00
1954-03-01	5984.00
1954-04-01	6007.00
1954-05-01	6005.00
1954-06-01	6614.00
1954-07-01	6328.00
1954-08-01	5661.00
1954-09-01	4049.00
1954-10-01	3207.00
1954-11-01	2691.00
1954-12-01	2569.00
1955-01-01	4116.00
1955-02-01	2862.00
1955-03-01	3327.00
1955-04-01	3250.00
1955-05-01	3233.00
1955-06-01	3565.00
1955-07-01	3450.00