Oesterreichische Nationalbank (OeNB), Oesterreichische Nationalbank (OeNB) and Oesterreichische Nationalbank (OeNB)

European Central Bank (ECB), European Central Bank (ECB), Oesterreichische Nationalbank (OeNB), European Central Bank (ECB), Bulgarian National Bank, Croatian National Bank, Deutsche Bundesbank, Banque de France, Bank of Greece - Economic Research Department, Magyar Nemzeti Bank, Magyar Nemzeti Bank, Bank of Italy, European Central Bank (ECB), National Bank of Poland, National Bank of Slovakia, Bank of Albania, Government of the Republic of Kosovo - Central Bank of the Republic of Kosovo, National Bank of the Republic of Macedonia, Central Bank of Montenegro, Central Bank of Montenegro, National Bank of Serbia and Government of the Republic of Turkey - Central Bank of the Republic of Turkey