Year	Number Of Trucks
1904	700.000
1905	1400.00
1906	2200.00
1907	2900.00
1908	4000.00
1909	6050.00
1910	10000.0
1911	20000.0
1912	41400.0
1913	63800.0
1914	85600.0
1915	136000.
1916	215000.
1917	326000.
1918	525000.
1919	794372.
1920	0.100608E+07
1921	0.111710E+07
1922	0.137572E+07
1923	0.161257E+07
1924	0.213472E+07
1925	0.244085E+07
1926	0.276422E+07
1927	0.291402E+07
1928	0.311400E+07
1929	0.337985E+07
1930	0.348602E+07
1931	0.346657E+07
1932	0.322931E+07
1933	0.323067E+07
1934	0.341925E+07
1935	0.366443E+07
1936	0.398734E+07
1937	0.425530E+07
1938	0.422403E+07
1939	0.441369E+07
1940	0.459039E+07
1941	0.485924E+07
1942	0.460809E+07
1943	0.448018E+07
1944	0.446920E+07