Quarter	National currency, sum over component sub-periods
1997-01-01	-3822000000
1997-04-01	26723000000
1997-07-01	6808000000
1997-10-01	926000000
1998-01-01	284000000
1998-04-01	17750000000
1998-07-01	5907000000
1998-10-01	6298000000
1999-01-01	2561000000
1999-04-01	6134000000
1999-07-01	-9653000000
1999-10-01	9268000000
2000-01-01	8099000000
2000-04-01	5893000000
2000-07-01	-6590000000
2000-10-01	277000000
2001-01-01	28095000000
2001-04-01	6678000000
2001-07-01	-7041000000
2001-10-01	-4623000000
2002-01-01	-4407000000
2002-04-01	3592000000
2002-07-01	2821000000
2002-10-01	19023000000
2003-01-01	19100000000
2003-04-01	10101000000
2003-07-01	-10227000000
2003-10-01	-1325000000
2004-01-01	14906000000
2004-04-01	-5539000000
2004-07-01	10769000000
2004-10-01	15453000000
2005-01-01	33281000000
2005-04-01	30312000000
2005-07-01	-16932000000
2005-10-01	-14059000000
2006-01-01	45710000000
2006-04-01	31179000000
2006-07-01	-2890000000
2006-10-01	17248000000
2007-01-01	2766000000
2007-04-01	50756000000
2007-07-01	-3741000000
2007-10-01	-434000000
2008-01-01	19223000000
2008-04-01	24119000000
2008-07-01	-25268000000
2008-10-01	-51831000000
2009-01-01	29103000000
2009-04-01	1972000000
2009-07-01	-2717000000
2009-10-01	-66645000000
2010-01-01	-11872000000
2010-04-01	-23102000000
2010-07-01	-9649000000
2010-10-01	-7973000000
2011-01-01	7698000000
2011-04-01	-893000000
2011-07-01	22474000000
2011-10-01	15966000000
2012-01-01	11860000000
2012-04-01	17107000000
2012-07-01	-2788000000
2012-10-01	6722000000
2013-01-01	-2301000000
2013-04-01	-383000000
2013-07-01	-6469000000
2013-10-01	-15885000000
2014-01-01	5216000000
2014-04-01	13376000000
2014-07-01	-4989000000
2014-10-01	3905000000
2015-01-01	3406000000
2015-04-01	-12147000000
2015-07-01	-9001000000
2015-10-01	-3511000000
2016-01-01	5058000000
2016-04-01	4551000000
2016-07-01	-18476000000
2016-10-01	15365000000
2017-01-01	20732000000
2017-04-01	-7401000000
2017-07-01	1902000000
2017-10-01	9662000000
2018-01-01	10110000000
2018-04-01	14428000000