Year % of GNI 1988 0.00146608007028972 1989 0.00123918857880225 1990 0.0169113058704723 1991 0.0668564982306457 1992 0.0417984179562874 1993 0.0317863879643246 1994 0.225094256159074 1995 0.0065788208884327 1996 0.0134547218892229 1997 0.00525158887966066 1998 0.00491250702788535 1999 0.0346153799765856 2000 0.18068479964192 2001 0.480449478004294 2002 0.948511004130685 2003 0.956733476626213 2004 0.675575882725703 2005 0.563540742466035 2006 0.834153538720058 2007 0.69282048018446 2008 0.0599306354908187 2009 0.518831952735647 2010 1.16861584740275 2011 2.44207999406088 2012 2.016778995862 2013 1.48753163350597 2014 0.948716534707435 2015 0.891009638671073 2016 1.14616989708091 2017 0.963745857846674 2018 0.656822870613861 2019 0.80584423681341 2020 0.913163027995809 2021 3.13150185309562