2  It may be mentioned that the System of National Accounts (SNA) 1993 has been impressing the national statistical agencies for regular updation of the base. In general, revision of base in every 5 years is an accepted principle in major developed and emerging countries. 3  Including manufactured food items.
2  BIS Review 5/2010  Chart 1 Long-run relationship between WPI and CPI Inflation  10. In addition, annual inflation based on WPI, CPI-IW, GDP deflator, and PFCE deflator, over longer time spans, followed a similar path (Table 1). Table 1 Decadal Average Inflation  11.