Year current US$ 1988 1620000.00476837 1989 2339999.91416931 1990 1549999.95231628 1991 1289999.96185303 1992 759999.990463257 1993 1450000.04768372 1994 1450000.04768372 1995 949999.988079071 1996 2140000.10490417 1997 699999.988079071 1998 2710000.03814697 1999 2569999.9332428 2000 2390000.10490417 2001 1549999.95231628 2002 1379999.99523163 2003 1570000.05245209 2004 2000000 2005 1460000.03814697 2006 2089999.9141693101 2007 1899999.97615814 2008 1059999.9427795399 2009 649999.976158142 2010 750000 2011 469999.998807907 2012 513739.46666717494 2013 434682.011604309 2014 441399.097442627 2015 536179.304122925 2016 406285.285949707 2017 367527.75311469997 2018 442558.25877189595 2019 538089.990615845 2020 791296.660900116 2021 362801.492214203 2022 370926.20134353597