European Central Bank — Banknotes statistics (BKN)

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Banknotes statistics (BKN) — official time series from the European Central Bank Data Portal, published as the BKN dataflow over SDMX 2.1 REST. One endpoint serves XML (SDMX-ML), CSV (?format=csvdata) and JSON (?format=jsondata); extract exactly the series you need with a key path and startPeriod / endPeriod / lastNObservations filters. Browse and chart the same series on the ECB Data Portal.

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Data schema (30 fields)

Filterable via the API (9)

FREQREF_AREABKN_ITEMBKN_TYPEBKN_DENOMBKN_SERIESDATA_TYPE_BKNSERIES_DENOMTIME_PERIOD

Click a field to see example values.

Field	Type	Description
FREQFrequency	dimension	2 codes (e.g. Half-yearly, Monthly)
REF_AREAReference area	dimension	28 codes (e.g. Austria, Belgium, Cyprus)
BKN_ITEMBanknote & coin related items	dimension	8 codes (e.g. Number of branches of Credit Institutions - Number of Credit Institutions and their branches providing cash services, Number of NCBs Branches - providing cash services, Collector coins - Collector coins issued less collector coins returned; not intended for circulation; (net issuance))
BKN_TYPEBanknote or coin	dimension	3 codes (e.g. Not applicable, Coins, Banknotes)
BKN_DENOMBKN denomination breakdown	dimension	28 codes (e.g. Not applicable, All denominations, 10)
BKN_SERIESBanknote/coin series	dimension	6 codes (e.g. Not applicable, All design series, Current currency)
DATA_TYPE_BKNBanknote & coin data type	dimension	2 codes (e.g. Stock, Flow)
SERIES_DENOMSeries denominat/spec calcul	dimension	3 codes (e.g. Quantity, Euro, National currency)
TIME_PERIODTime period or range	time	Time dimension — filter with startPeriod / endPeriod query params.
OBS_VALUEObservation value	number	The observed numeric value for each cell.
TIME_FORMATTime format code	attribute	—
BREAKS	attribute	—
COLLECTIONCollection indicator	attribute	—
COMPILING_ORGCompiling organisation	attribute	—
DISS_ORGData dissemination organisation	attribute	—
DOM_SER_IDSDomestic series ids	attribute	—
PUBL_ECBSource publication (ECB only)	attribute	—
PUBL_MUSource publication (Euro area only)	attribute	—
PUBL_PUBLICSource publication (public)	attribute	—
COMPILATION	attribute	—
DECIMALS	attribute	—
NAT_TITLENational language title	attribute	—
SOURCE_AGENCY	attribute	—
TITLE	attribute	—
TITLE_COMPLTitle complement	attribute	—
UNIT	attribute	—
UNIT_MULTUnit multiplier	attribute	—
OBS_STATUSObservation status	attribute	—
OBS_CONFObservation confidentiality	attribute	—
OBS_PRE_BREAKPre-break observation value	attribute	—

Schema captured from sdmx 1 month ago.

Query the data

Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.

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Sample data (5 records)

Record 1FREQ: H · BKN_ITEM: A020

{
  "FREQ": "H",
  "BKN_ITEM": "A020",
  "BKN_TYPE": "Z",
  "REF_AREA": "AT",
  "BKN_DENOM": "ZZZZ",
  "OBS_VALUE": 3502,
  "BKN_SERIES": "ZZ",
  "TIME_PERIOD": "2025-S2",
  "SERIES_DENOM": "Q",
  "DATA_TYPE_BKN": "S"
}

Record 2FREQ: H · BKN_ITEM: A030

{
  "FREQ": "H",
  "BKN_ITEM": "A030",
  "BKN_TYPE": "Z",
  "REF_AREA": "AT",
  "BKN_DENOM": "ZZZZ",
  "OBS_VALUE": 1,
  "BKN_SERIES": "ZZ",
  "TIME_PERIOD": "2025-S2",
  "SERIES_DENOM": "Q",
  "DATA_TYPE_BKN": "S"
}

Record 3FREQ: H · BKN_ITEM: A020

{
  "FREQ": "H",
  "BKN_ITEM": "A020",
  "BKN_TYPE": "Z",
  "REF_AREA": "BE",
  "BKN_DENOM": "ZZZZ",
  "OBS_VALUE": 3048,
  "BKN_SERIES": "ZZ",
  "TIME_PERIOD": "2025-S2",
  "SERIES_DENOM": "Q",
  "DATA_TYPE_BKN": "S"
}

Record 4FREQ: H · BKN_ITEM: A030

{
  "FREQ": "H",
  "BKN_ITEM": "A030",
  "BKN_TYPE": "Z",
  "REF_AREA": "BE",
  "BKN_DENOM": "ZZZZ",
  "OBS_VALUE": 1,
  "BKN_SERIES": "ZZ",
  "TIME_PERIOD": "2025-S2",
  "SERIES_DENOM": "Q",
  "DATA_TYPE_BKN": "S"
}

Record 5FREQ: H · BKN_ITEM: A020

{
  "FREQ": "H",
  "BKN_ITEM": "A020",
  "BKN_TYPE": "Z",
  "REF_AREA": "CY",
  "BKN_DENOM": "ZZZZ",
  "OBS_VALUE": 153,
  "BKN_SERIES": "ZZ",
  "TIME_PERIOD": "2025-S2",
  "SERIES_DENOM": "Q",
  "DATA_TYPE_BKN": "S"
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Query examples

curl -s 'https://data-api.ecb.europa.eu/service/dataflow/ECB' -H 'Accept: application/vnd.sdmx.structure+xml;version=2.1'

All dataflows (datasets) published by this agency, as SDMX-ML.

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Machine-readable & source

JSON

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