This sub-template returns the associated country's CPI for a specific year. It's used by {{Inflation/doc}} for calculating the inflation rate between two given years, which in turn is used by {{Inflation}} to calculate inflated values. It usually isn't meant to be called directly. The sources for this dataset are Nominal Wage, Cost of Living and Real Wage Data for the Philippines 1899-1940 from 1899 to 1938, Inflation 1800-2000, and Consumer Price Index, Inflation Rate, and Purchasing Power of the Peso from 1959 to 2019, and subsequent releases of that data table for 2020 and 2021.