Year US Dollars, Sum Over Component Sub-periods 1990-01-01 -1085627784.759510 1991-01-01 -1510273524.407800 1992-01-01 -1249086622.640730 1993-01-01 -1044806004.275850 1994-01-01 -987627205.505528 1995-01-01 -735892360.562970 1996-01-01 -199445170.909358 1997-01-01 169674069.349763 1998-01-01 378835966.947348 1999-01-01 195216084.010232 2000-01-01 290887870.132931 2001-01-01 403640297.294534 2002-01-01 337570658.952788 2003-01-01 -242794998.899091 2004-01-01 -501117651.203156 2005-01-01 -1483855438.258660 2006-01-01 -1707636021.687070 2007-01-01 -2066413794.708310 2008-01-01 -574207498.419290 2009-01-01 -2267424032.241580 2010-01-01 -3219632934.020330 2011-01-01 -3521294073.044360 2012-01-01 -3548631901.993980 2013-01-01 -2290984103.870890