Quarter	National currency, sum over component sub-periods
2002-01-01	6210000000
2002-04-01	-1175000000
2002-07-01	758000000
2002-10-01	4463000000
2003-01-01	-2243000000
2003-04-01	-2629000000
2003-07-01	-195000000
2003-10-01	2432000000
2004-01-01	-179000000
2004-04-01	4559000000
2004-07-01	-4178000000
2004-10-01	-3233000000
2005-01-01	12327000000
2005-04-01	1358000000
2005-07-01	-2283000000
2005-10-01	2031000000
2006-01-01	7777000000
2006-04-01	1982000000
2006-07-01	3034000000
2006-10-01	4896000000
2007-01-01	7996000000
2007-04-01	4518000000
2007-07-01	3999000000
2007-10-01	13723000000
2008-01-01	3563000000
2008-04-01	19605000000
2008-07-01	-1689000000
2008-10-01	19225000000
2009-01-01	3390000000
2009-04-01	9346000000
2009-07-01	4566000000
2009-10-01	7020000000
2010-01-01	14405000000
2010-04-01	27729000000
2010-07-01	4512000000
2010-10-01	-3129000000
2011-01-01	9723000000
2011-04-01	20950000000
2011-07-01	9820000000
2011-10-01	435000000
2012-01-01	31501000000
2012-04-01	40065000000
2012-07-01	-9498000000
2012-10-01	22336000000
2013-01-01	-19591000000
2013-04-01	9169000000
2013-07-01	-5955000000
2013-10-01	-3398000000
2014-01-01	-3018000000
2014-04-01	-7222000000
2014-07-01	-650000000
2014-10-01	10222000000
2015-01-01	13215000000
2015-04-01	12006000000
2015-07-01	2772000000
2015-10-01	-5131000000
2016-01-01	2767000000
2016-04-01	-7253000000
2016-07-01	-2245000000
2016-10-01	-1788000000
2017-01-01	646000000
2017-04-01	-5217000000
2017-07-01	-13326000000
2017-10-01	-15429000000
2018-01-01	-6615000000
2018-04-01	-6030000000