Year current US$ 1991 170000.00178813902 1992 39999.9991059303 1993 219999.998807907 1994 360000.01430511504 1995 500000 1996 340000.00357627904 1997 300000.011920929 1998 370000.00476837205 1999 699999.988079071 2000 779999.971389771 2001 879999.995231628 2002 2359999.89509583 2003 3329999.92370605 2004 4320000.17166138 2005 5920000.07629395 2006 860000.014305115 2007 55299999.237060495 2008 1690000.0572204601 2009 1100000.02384186 2010 1519999.98092651 2011 1809999.9427795399 2012 4739999.771118159 2013 4219999.79019165 2014 3420000.07629395 2015 3980000.01907349 2016 6579999.92370605 2017 8670000.07629395 2018 7400000.09536743 2019 5239999.771118159 2020 6829999.92370605 2021 6039999.96185303 2022 5969999.79019165