various reasons, it has become quite difficult to accurately assess reserves on more than simple loan instruments, and this plus the regional differences has tended to discourage standardizing any reserve rules at the global BIS scale. Historically, the BIS did set some standards which favoured lending money to private landowners (at about 5 to 1) and for-profit corporations (at about 2 to 1) over loans to individuals. These distinctions reflecting classical economics were superseded by policies relying on undifferentiated market values – more in line with neoclassical economics. Goal: monetary and financial stability The stated mission of the BIS is to serve central banks in their pursuit of monetary and financial stability, to foster international cooperation in those areas and to act as a bank for central banks. The BIS pursues its mission by: fostering discussion and facilitating collaboration among central banks; supporting dialogue with other authorities that are responsible for promoting financial stability; carrying out research and policy analysis on issues of relevance for monetary and financial stability; acting as a prime counterparty for central banks in their financial transactions; and serving as an agent or trustee in connection with international financial operations. The role that the BIS plays today goes beyond its historical role. The original goal of the BIS was "to promote the co-operation of central banks and to provide additional facilities for international financial operations; and to act as trustee or agent in regard to international financial settlements entrusted to it under agreements with the parties concerned", as stated in its Statutes of 1930. Role in banking supervision The BIS hosts the Secretariat of the Basel Committee on Banking Supervision and with it has played a central role in establishing the Basel Capital Accords (now commonly referred to as Basel I) of 1988, Basel II framework in 2004 and more recently Basel III framework in 2010. Financial results BIS denominates its reserve in IMF special drawing rights. The balance sheet total of the BIS on 31 March 2019 was SDR 291.1 billion (US$403.7 billion) and a net profit of SDR 461.1 million (US$639.5 million). Members Sixty-three central banks and monetary authorities are currently members of the BIS and have rights of voting and representation at general meetings. The number of countries represented in each continent are: 35 in Europe, 15 in Asia, 5 in South America, 3 in North America, 2 in Oceania, and 3 in