INE eases the access to its datasets through an API. By defining a specific URL, we can carry out petitions of any type of data (time series, tables, etc). For this case, we want to download the table of CPI of different regions and dissagregated in categories and core CPI. An example of url to download this type of data would be:

https://servicios.ine.es/wstempus/js/ES/DATOS_METADAOPERACIÓN/IPC?g1=115:29&g2=3:74&g3=762:&nult=1

We will only focus on /DATOS_METADATAOPERACION/IPC?g1=70:9009&g2=3:74&g3=762:&p=1&nult=1.

• /DATOS_METADATAOPERACION is the type of data. There are many and each one has different features.
• /IPC is the variable of interest. After that, there is a ? which precedes some parameters of the search.
• g1=115:29, 115 refers to the code of geographical level. In this case, it is provincial level and the province is Madrid, with code 29. Table codigo_provincias shows all the codes.
• g2=3:74, 3 selects the group TYPE OF DATA that for this particular case is anual variation. See table codigos_tipo_dato for more options.
• g3=762, with this code, we are able to select all the categories in which the CPI is computed. See table codigos_grupos_ECOICOP for more information.
• nult=10, the last published data, then nult=1 will return the last 10 observations of the series.

If you want to download any type of table, I leave here the webpage where you can define your own URL to access to any dataset. See here.