Year National currency, Monthly Level 1960-01-01 1617740000000.000 1961-01-01 2090170000000.000 1962-01-01 2027720000000.000 1963-01-01 2427250000000.000 1964-01-01 2857510000000.000 1965-01-01 2941650000000.000 1966-01-01 3429050000000.000 1967-01-01 4198040000000.000 1968-01-01 4674530000000.000 1969-01-01 5410137000000.000 1970-01-01 6795133000000.000 1971-01-01 6907535000000.000 1972-01-01 7230966000000.000 1973-01-01 10390282000000.000 1974-01-01 18060467000000.000 1975-01-01 17172187999999.998 1976-01-01 19245464000000.000 1977-01-01 19141175000000.000 1978-01-01 16721841000000.000 1979-01-01 24242725000000.000 1980-01-01 31966784000000.000 1981-01-01 31445645000000.000 1982-01-01 32643331000000.000 1983-01-01 30019817000000.000 1984-01-01 32327159000000.000 1985-01-01 31082662000000.000 1986-01-01 21563392000000.000 1987-01-01 21712827000000.000 1988-01-01 23996775000000.000 1989-01-01 28939645000000.000 1990-01-01 33829731000000.000 1991-01-01 31929037000000.000 1992-01-01 29554767000000.000 1993-01-01 26859886000000.000 1994-01-01 28136421000000.000 1995-01-01 31563821000000.000 1996-01-01 38013457000000.000 1997-01-01 40951818000000.000 1998-01-01 36533114000000.000 1999-01-01 35263415000000.000 2000-01-01 40990084000000.000 2001-01-01 42364935000000.000 2002-01-01 42206633000000.000 2003-01-01 44352986000000.000 2004-01-01 49043951000000.000 2005-01-01 57196116000000.000 2006-01-01 67358429999999.990 2007-01-01 73365344000000.000 2008-01-01 79034915000000.000 2009-01-01 51445399000000.000 2010-01-01 60778500000000.000 2011-01-01 68289795000000.000 2012-01-01 70467935000000.000 2013-01-01 81216441000000.000 2014-01-01 85757123000000.000 2015-01-01 78410702000000.000 2016-01-01 66007719000000.000 2017-01-01 75477832000000.000