I'm downloading data on inflation in different countries, and using the World Bank's World Development Indicators (WDI). Specifically, the Consumer Price Index series (CPI). (http://data.worldbank.org/indicator/FP.CPI.TOTL)
Current edition of WDI (annual CPI data) has some weird missing data series. There is no data provided for CPI in the UK from 1960-1987. The series for China starts in 2010. For Argentina, no data until 2014.
I could certainly believe there is insufficient data for some countries in some years (say, France during World War II). But it's hard to believe that data in the UK were insufficient to calculate a CPI prior to 1988. Similarly for the other examples.
Anyone have any ideas?