Year current US$ 1962 37833333.33333412 1963 37436507.93650872 1964 39920634.92063571 1965 63380952.38095317 1966 60158730.15873095 1967 64674603.17460475 1968 59246031.74603332 1969 63484126.98412856 1970 80412698.41269998 1971 79722222.2222238 1972 115238095.23809765 1973 196285714.2857143 1974 257922016.5079365 1975 294023809.5238173 1976 360984126.98413473 1977 453944444.44445217 1978 601595238.0952458 1979 788119047.6190554 1980 1003420634.9206504 1981 1238015873.0158885 1982 976095588.2353085 1983 828049453.9041238 1984 806950383.2991383 1985 680398770.365328 1986 906405545.8059722 1987 901586926.4970206 1988 1362270963.6904879 1989 1886245832.3234327 1990 1798711901.1221504 1991 2210810823.271959 1992 2051570339.398787 1993 1878025717.365132 1994 1808354229.6667297 1995 2492703439.85288 1996 2405514148.219816 1997 2384027372.558383 1998 2573063551.012474 1999 2386113928.3504376 2000 2245485105.5975447 2001 2263899859.958646 2002 2418540016.4093304 2003 2598834295.522964 2004 3016241335.491365 2005 3335970043.307026 2006 4002376167.7696548 2007 5191440811.133564 2008 6485497089.009591 2009 5425259011.553849 2010 7321488516.167283 2011 8995080809.653769 2012 7482952307.856588 2013 10038953158.583445 2014 9894169534.267206 2015 8847519255.087984 2016 9503617883.17588 2017 10084063981.269754 2018 9822776222.14012 2019 8585436365.512895 2020 8440829502.349206 2021 10079627784.655954 2022 9517982447.620224 2023 9327892875.424881