{
 "code": "LK.EXT.FX_LONG_RUN.USD_ANNUAL_AVERAGE.A",
 "name": "US dollar, annual average exchange rate",
 "unit": "Rs per USD",
 "frequency": "Annual",
 "base_year": null,
 "producer": "Central Bank of Sri Lanka",
 "publisher": "Central Bank of Sri Lanka",
 "source_url": "https://www.cbsl.gov.lk/en/publications/economic-and-financial-reports/annual-economic-review",
 "latest_vintage": "2026-04-20",
 "page": "/data/series/LK.EXT.FX_LONG_RUN.USD_ANNUAL_AVERAGE.A/",
 "notice": "Compiled by Macro Lab; not an official publication of the source agency. Provided as is, without warranty of any kind. Not investment advice.",
 "observations": [
  {"period": "1950", "value": 4.76, "status": null},
  {"period": "1951", "value": 4.76, "status": null},
  {"period": "1952", "value": 4.76, "status": null},
  {"period": "1953", "value": 4.76, "status": null},
  {"period": "1954", "value": 4.76, "status": null},
  {"period": "1955", "value": 4.76, "status": null},
  {"period": "1956", "value": 4.76, "status": null},
  {"period": "1957", "value": 4.76, "status": null},
  {"period": "1958", "value": 4.76, "status": null},
  {"period": "1959", "value": 4.76, "status": null},
  {"period": "1960", "value": 4.76, "status": null},
  {"period": "1961", "value": 4.76, "status": null},
  {"period": "1962", "value": 4.76, "status": null},
  {"period": "1963", "value": 4.76, "status": null},
  {"period": "1964", "value": 4.76, "status": null},
  {"period": "1965", "value": 4.76, "status": null},
  {"period": "1966", "value": 4.76, "status": null},
  {"period": "1967", "value": 4.86, "status": null},
  {"period": "1968", "value": 5.95, "status": null},
  {"period": "1969", "value": 5.95, "status": null},
  {"period": "1970", "value": 5.95, "status": null},
  {"period": "1971", "value": 5.94, "status": null},
  {"period": "1972", "value": 5.97, "status": null},
  {"period": "1973", "value": 6.40, "status": null},
  {"period": "1974", "value": 6.65, "status": null},
  {"period": "1975", "value": 7.01, "status": null},
  {"period": "1976", "value": 8.41, "status": null},
  {"period": "1977", "value": 8.87, "status": null},
  {"period": "1978", "value": 15.61, "status": null},
  {"period": "1979", "value": 15.57, "status": null},
  {"period": "1980", "value": 16.53, "status": null},
  {"period": "1981", "value": 19.25, "status": null},
  {"period": "1982", "value": 20.81, "status": null},
  {"period": "1983", "value": 23.53, "status": null},
  {"period": "1984", "value": 25.44, "status": null},
  {"period": "1985", "value": 27.16, "status": null},
  {"period": "1986", "value": 28.02, "status": null},
  {"period": "1987", "value": 29.45, "status": null},
  {"period": "1988", "value": 31.81, "status": null},
  {"period": "1989", "value": 36.05, "status": null},
  {"period": "1990", "value": 40.06, "status": null},
  {"period": "1991", "value": 41.37, "status": null},
  {"period": "1992", "value": 43.83, "status": null},
  {"period": "1993", "value": 48.25, "status": null},
  {"period": "1994", "value": 49.42, "status": null},
  {"period": "1995", "value": 51.25, "status": null},
  {"period": "1996", "value": 55.27, "status": null},
  {"period": "1997", "value": 58.99, "status": null},
  {"period": "1998", "value": 64.59, "status": null},
  {"period": "1999", "value": 70.39, "status": null},
  {"period": "2000", "value": 75.78, "status": null},
  {"period": "2001", "value": 89.36, "status": null},
  {"period": "2002", "value": 95.66, "status": null},
  {"period": "2003", "value": 96.52, "status": null},
  {"period": "2004", "value": 101.19, "status": null},
  {"period": "2005", "value": 100.50, "status": null},
  {"period": "2006", "value": 103.96, "status": null},
  {"period": "2007", "value": 110.62, "status": null},
  {"period": "2008", "value": 108.33, "status": null},
  {"period": "2009", "value": 114.94, "status": null},
  {"period": "2010", "value": 113.06, "status": null},
  {"period": "2011", "value": 110.57, "status": null},
  {"period": "2012", "value": 127.60, "status": null},
  {"period": "2013", "value": 129.11, "status": null},
  {"period": "2014", "value": 130.56, "status": null},
  {"period": "2015", "value": 135.94, "status": null},
  {"period": "2016", "value": 145.60, "status": null},
  {"period": "2017", "value": 152.46, "status": null},
  {"period": "2018", "value": 162.54, "status": null},
  {"period": "2019", "value": 178.78, "status": null},
  {"period": "2020", "value": 185.52, "status": null},
  {"period": "2021", "value": 198.88, "status": null},
  {"period": "2022", "value": 324.55, "status": null},
  {"period": "2023", "value": 327.53, "status": null},
  {"period": "2024", "value": 302.12, "status": null},
  {"period": "2025", "value": 300.95, "status": null}
 ]
}