Year Percent of GDP (Units) 1989 3.543 1990 4.269 1991 4.235 1992 3.938 1993 4.450 1994 4.505 1995 4.202 1996 4.514 1997 4.030 1998 2.588 1999 1.362 2000 0.854 2001 1.165 2002 0.618 2003 1.330 2004 2.121 2005 3.424 2006 4.563 2007 3.271 2008 3.272 2009 0.599 2010 0.653 2011 2.096 2012 2.291 2013 2.740 2014 3.477 2015 2.108 2016 1.036 2017 0.876 2018 0.169 2019 0.068 2020 -3.726 2021 -4.427 2022 -3.493 2023 -2.860 2024 -1.701 2025 -1.024 2026 -0.340 2027 0.028 2028 0.341 2029 0.336