Year National currency (Units) 1980 5184.674 1981 5878.135 1982 6611.179 1983 7433.014 1984 8642.661 1985 10162.730 1986 12467.548 1987 14729.212 1988 17677.600 1989 19637.768 1990 20583.271 1991 21404.489 1992 21827.952 1993 22879.904 1994 24562.555 1995 23423.139 1996 25019.477 1997 26131.465 1998 27201.824 1999 27943.703 2000 29514.542 2001 28110.839 2002 28311.595 2003 29488.981 2004 31356.003 2005 34521.854 2006 38657.721 2007 43364.368 2008 44750.493 2009 39659.428 2010 36650.989 2011 35897.484 2012 37328.356 2013 36220.236 2014 37747.648 2015 39767.506 2016 42089.044 2017 42354.217 2018 45602.438 2019 46899.111 2020 39063.793 2021 42415.213 2022 47091.950 2023 51632.674 2024 55439.055 2025 58071.249 2026 60076.383 2027 62152.494 2028 64308.838 2029 66548.773