Monthly data is taken as the average of daily data.
Aggregate of Relevant Foreign Currency Positions, Securities Portfolio, and Money Market Transactions of SNB minus the balance of the remaining balance sheet positions. In order to fully understand the values in this series, it is necessary to consult the corresponding publication document provided at http://www.snb.ch/ext/stats/statmon/pdf/deen/B1_Notenbankgeldmenge.pdf
Source: Swiss National Bank
Swiss National Bank, Swiss Monetary Base Aggregate [SNBMONTBASE], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/SNBMONTBASE/, November 26, 2015.