Real Effective Exchange Rate Index (24-currency basket, 2017=100)
Effective exchange rates. Index, monthly.
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Data source: Central Bank of Sri Lanka, Real Effective Exchange Rates (REER (1 Oct 2026)
Macro Lab · LK.EXT.EER.REER.2017.M · CC BY 4.0
About this series
- Source Central Bank of Sri Lanka, compiled by Macro Lab
- Unit Index
- Base year 2017
- Date range Jan 2013 – Aug 2026
- Last checked 1 Oct 2026
Checks: 3 recorded for this series, listed below.
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Details
- Name in the warehouse
- Real Effective Exchange Rate Index (24-currency basket, 2017=100)
- Base year
- 2017
- Read from
- CBSL rates and indicators (Central Bank of Sri Lanka)
- Source page
- https://www.cbsl.gov.lk/en/rates-and-indicators
- Notes
- CBSL 'Rates and Indicators' Exchange Rates page, monthly average, 24-currency trade-weighted basket. REER uses the CCPI rebased to 2021=100 from Feb 2023, and rebased partner-country CPIs from Jan 2026 - both are methodology revisions to the same index (the file's own footnotes), not a base-year change, so the series is not split. Cross-checked against the Annual Economic Review's Table 98 in check_eer_vs_table98(); differences from 2024 on are that revision, expected and reported, not a parsing error.
Source documents
Vintages
One vintage so far, published 1 Oct 2026. Revisions show here once a later release changes a value.
Related series
Source discrepancies
What the warehouse found when it checked this series: the same figure from two agencies, splice overlaps, published rates against ones recalculated from the index, and outliers.
- Disagrees with itselfJan 2024
This series reads 73.37; the same figure from the other source reads 72.45.
Two agencies: 73.375 and 72.45, difference 0.925.
REER: IF_REER vs AER Table 98 (Statistical Appendix)
3 months (2024-01, 2024-03, 2024-08) where IF_REER's REER disagrees with the AER Statistical Appendix's Table 98 by 0.7-0.9 index points (~1%); every other of ~150 shared months agrees within the 0.5-point tolerance. most likely the AER's frozen Table 98 snapshot used a slightly different CPI vintage than the live IF_REER file for these three months. Not a NEER issue - NEER agrees throughout.
- Disagrees with itselfMar 2024
This series reads 75.39; the same figure from the other source reads 76.13.
Two agencies: 75.389 and 76.128, difference −0.739.
REER: IF_REER vs AER Table 98 (Statistical Appendix)
3 months (2024-01, 2024-03, 2024-08) where IF_REER's REER disagrees with the AER Statistical Appendix's Table 98 by 0.7-0.9 index points (~1%); every other of ~150 shared months agrees within the 0.5-point tolerance. most likely the AER's frozen Table 98 snapshot used a slightly different CPI vintage than the live IF_REER file for these three months. Not a NEER issue - NEER agrees throughout.
- Disagrees with itselfAug 2024
This series reads 72.79; the same figure from the other source reads 73.51.
Two agencies: 72.786 and 73.511, difference −0.725.
REER: IF_REER vs AER Table 98 (Statistical Appendix)
3 months (2024-01, 2024-03, 2024-08) where IF_REER's REER disagrees with the AER Statistical Appendix's Table 98 by 0.7-0.9 index points (~1%); every other of ~150 shared months agrees within the 0.5-point tolerance. most likely the AER's frozen Table 98 snapshot used a slightly different CPI vintage than the live IF_REER file for these three months. Not a NEER issue - NEER agrees throughout.