In 1914 there was a minor increase in the wholesale price index. That index, with a base of one in 1913, had increased to 2.45 by the end of 1918. Beginning in 1919, the speed of the inflation increased, advancing to 12. 6 in January 1920; 14.4 in January 1921 and 36. 7 in January 1922. By the second half of 1922, that index stood at 101 in July; it was 74,787 in July 1923 and 750 billion on 15 November 1923.