European Central Bank — Banknotes statistics (BKN)
Banknotes statistics (BKN) is an official time series dataset published by the European Central Bank via the ECB Data Portal, provided as the BKN dataflow over the SDMX 2.1 REST API. A single endpoint serves data in XML (SDMX-ML), CSV, and JSON formats, allowing users to extract specific series using a key path along with startPeriod, endPeriod, or lastNObservations filters. The same series can also be browsed and charted interactively on the ECB Data Portal. The dataset covers euro area banknote-related statistics and is relevant to economic and monetary analysis.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.
Trust score
How is this computed?Weighted across five axes. Tap a ring for what it measures.
Data schema (30 fields)
Click a field to see example values.
| Field | Type | Description |
|---|---|---|
| FREQFrequency | dimension | Frequency of the time series, e.g. half-yearly or monthly.2 codes (e.g. Half-yearly, Monthly) |
| REF_AREAReference area | dimension | Reference country or area for the observation.28 codes (e.g. Austria, Belgium, Bulgaria) |
| BKN_ITEMBanknote & coin related items | dimension | Type of banknote or coin related item being measured.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 | Indicates whether the data refers to banknotes, coins, or not applicable.3 codes (e.g. Not applicable, Coins, Banknotes) |
| BKN_DENOMBKN denomination breakdown | dimension | Denomination breakdown of the banknote or coin, if applicable.28 codes (e.g. Not applicable, All denominations, 10) |
| BKN_SERIESBanknote/coin series | dimension | Banknote or coin design series covered by the observation.6 codes (e.g. Not applicable, All design series, Current currency) |
| DATA_TYPE_BKNBanknote & coin data type | dimension | Indicates whether the value is a stock or a flow figure.2 codes (e.g. Stock, Flow) |
| SERIES_DENOMSeries denominat/spec calcul | dimension | Unit of denomination for the series: quantity, euro, or national currency.3 codes (e.g. Quantity, Euro, National currency) |
| TIME_PERIODTime period or range | time | Time period of the observation; filterable via startPeriod/endPeriod.Time dimension — filter with startPeriod / endPeriod query params. |
| OBS_VALUEObservation value | number | Numeric value recorded for the observation.The observed numeric value for each cell. |
| TIME_FORMATTime format code | attribute | Code indicating the format of the time period.Code indicating the format of the time period. |
| BREAKS | attribute | Indicates breaks in the time series, if any.Indicates breaks in the time series, if any. |
| COLLECTIONCollection indicator | attribute | Indicator describing how the data was collected.Indicator describing how the data was collected. |
| COMPILING_ORGCompiling organisation | attribute | Organisation that compiled the data.Organisation that compiled the data. |
| DISS_ORGData dissemination organisation | attribute | Organisation responsible for disseminating the data.Organisation responsible for disseminating the data. |
| DOM_SER_IDSDomestic series ids | attribute | Identifiers used for the series in domestic/national sources.Identifiers used for the series in domestic/national sources. |
| PUBL_ECBSource publication (ECB only) | attribute | Reference to the ECB-only source publication.Reference to the ECB-only source publication. |
| PUBL_MUSource publication (Euro area only) | attribute | Reference to the euro area-only source publication.Reference to the euro area-only source publication. |
| PUBL_PUBLICSource publication (public) | attribute | Reference to the publicly available source publication.Reference to the publicly available source publication. |
| COMPILATION | attribute | Notes on how the data was compiled.Notes on how the data was compiled. |
| DECIMALS | attribute | Number of decimal places used in the observation value.Number of decimal places used in the observation value. |
| NAT_TITLENational language title | attribute | Title of the series in the national language.Title of the series in the national language. |
| SOURCE_AGENCY | attribute | Agency that originally sourced the data.Agency that originally sourced the data. |
| TITLE | attribute | Short title describing the series.Short title describing the series. |
| TITLE_COMPLTitle complement | attribute | Additional complementary text to the series title.Additional complementary text to the series title. |
| UNIT | attribute | Unit of measurement for the observation value.Unit of measurement for the observation value. |
| UNIT_MULTUnit multiplier | attribute | Power-of-ten multiplier applied to the unit.Power-of-ten multiplier applied to the unit. |
| OBS_STATUSObservation status | attribute | Status code indicating the nature of the observation, e.g. normal or estimated.Status code indicating the nature of the observation, e.g. normal or estimated. |
| OBS_CONFObservation confidentiality | attribute | Confidentiality status of the observation.Confidentiality status of the observation. |
| OBS_PRE_BREAKPre-break observation value | attribute | Observation value recorded prior to a time series break.Observation value recorded prior to a time series break. |
Schema captured from sdmx 2 days 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.
Sample data (5 records)
Record 1FREQ: H · OBS_COM: —
{
"FREQ": "H",
"OBS_COM": null,
"BKN_ITEM": "A020",
"BKN_TYPE": "Z",
"OBS_CONF": "F",
"REF_AREA": "AT",
"BKN_DENOM": "ZZZZ",
"OBS_VALUE": 3458,
"BKN_SERIES": "ZZ",
"OBS_STATUS": "A",
"TIME_PERIOD": "2026-S1",
"SERIES_DENOM": "Q",
"DATA_TYPE_BKN": "S",
"OBS_PRE_BREAK": null
}Record 2FREQ: H · OBS_COM: —
{
"FREQ": "H",
"OBS_COM": null,
"BKN_ITEM": "A030",
"BKN_TYPE": "Z",
"OBS_CONF": "F",
"REF_AREA": "AT",
"BKN_DENOM": "ZZZZ",
"OBS_VALUE": 1,
"BKN_SERIES": "ZZ",
"OBS_STATUS": "A",
"TIME_PERIOD": "2026-S1",
"SERIES_DENOM": "Q",
"DATA_TYPE_BKN": "S",
"OBS_PRE_BREAK": null
}Record 3FREQ: H · OBS_COM: —
{
"FREQ": "H",
"OBS_COM": null,
"BKN_ITEM": "A020",
"BKN_TYPE": "Z",
"OBS_CONF": "F",
"REF_AREA": "BE",
"BKN_DENOM": "ZZZZ",
"OBS_VALUE": 2865,
"BKN_SERIES": "ZZ",
"OBS_STATUS": "A",
"TIME_PERIOD": "2026-S1",
"SERIES_DENOM": "Q",
"DATA_TYPE_BKN": "S",
"OBS_PRE_BREAK": null
}Record 4FREQ: H · OBS_COM: —
{
"FREQ": "H",
"OBS_COM": null,
"BKN_ITEM": "A030",
"BKN_TYPE": "Z",
"OBS_CONF": "F",
"REF_AREA": "BE",
"BKN_DENOM": "ZZZZ",
"OBS_VALUE": 1,
"BKN_SERIES": "ZZ",
"OBS_STATUS": "A",
"TIME_PERIOD": "2026-S1",
"SERIES_DENOM": "Q",
"DATA_TYPE_BKN": "S",
"OBS_PRE_BREAK": null
}Record 5FREQ: H · OBS_COM: —
{
"FREQ": "H",
"OBS_COM": null,
"BKN_ITEM": "A020",
"BKN_TYPE": "Z",
"OBS_CONF": "F",
"REF_AREA": "BG",
"BKN_DENOM": "ZZZZ",
"OBS_VALUE": 1474,
"BKN_SERIES": "ZZ",
"OBS_STATUS": "A",
"TIME_PERIOD": "2026-S1",
"SERIES_DENOM": "Q",
"DATA_TYPE_BKN": "S",
"OBS_PRE_BREAK": null
}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.
Machine-readable & source
Embed this badge in a README or wiki — it always shows the latest verification state and quality tier.