Provincial Gross Domestic Product (PGDP) for 2016 has been computed by the Statistics Department of Central Bank of Sri Lanka (CBSL), by disaggregating the nominal Gross Domestic Product (GDP) compiled by the Department of Census and Statistics (DCS). In the estimation of PGDP for the provinces, the value of each line item in GDP is apportioned using relevant indicators at provincial level.

In nominal terms the national GDP for 2016 was Rs. 11,839 billion recording a growth of 8.11 per cent and a per capita income of Rs. 558,363 (US$ 3,835). The overall performance of PGDP in 2016 follows the general trend of GDP of the country and developments in economic activities. The subdued performance of the agriculture activities contributed to the slower growth in provinces where agriculture remains a main economic activity. Even though the Western province continues to drive overall economic progress occupying 39.7 per cent of GDP, contributions from other provinces gradually increase with the expansion of regional economic bases.

Inflation, as measured by the change in the National Consumer Price Index (NCPI) (2013=100), which is compiled by the Department of Census and Statistics (DCS), increased to 8.6 per cent in September 2017 from 7.9 per cent in August 2017, on year-on-year basis. Both Food and Nonfood categories contributed towards the year-on-year inflation in September 2017.

The change in the NCPI measured on an annual average basis increased from 6.5 per cent in August 2017 to 6.8 per cent in September 2017.