Western province, which is the epicentre to majority of the key activities of the Sri Lankan economy, continued to be the largest contributor to the national output representing 42.6 per cent of the nominal GDP (base year 2015) in 2021, with a marginal increase in its share on year-on-year basis. North Western (11.1 per cent) and Central (10.1 per cent) provinces recorded second and third highest shares, respectively.
Contribution to nominal GDP from Western, Sabaragamuwa and North Western provinces increased in 2021 compared to 2020, while that of Southern, Northern and Uva provinces remained unchanged. However, contributions from Central, Eastern and North Central provinces decreased marginally in 2021.