1918. 15,146 1,535,690 15,254 1,488,494 1919. 15,408 1,847,038 15,741 1,881,001 1920. 16,738 2,361,705 17,011 2,326,849 1921. 16,734 2,541,288 16,958 2,508,307 1922. 17,554 3,180,698 17,846 3,110,563