YEAR PO POse NP NPse SP SPse 1955.500 -0.015 0.010 -0.019 0.010 -0.012 0.009 1956.500 -0.007 0.005 -0.014 0.007 -0.000 0.006 1957.500 -0.014 0.004 -0.017 0.005 -0.012 0.005 1958.500 -0.006 0.005 -0.000 0.003 -0.011 0.009 1959.500 0.002 0.003 0.010 0.008 -0.005 0.002 1960.500 -0.006 0.001 -0.000 0.007 -0.011 0.006 1961.500 -0.010 0.002 -0.011 0.005 -0.010 0.003 1962.500 0.003 0.005 0.009 0.009 -0.002 0.003 1963.500 -0.001 0.000 -0.008 0.006 0.004 0.005 1964.500 -0.011 0.005 -0.001 0.005 -0.018 0.006 1965.500 -0.004 0.003 -0.001 0.007 -0.006 0.005 1966.500 -0.018 0.002 -0.007 0.005 -0.026 0.002 1967.500 -0.013 0.002 -0.017 0.006 -0.010 0.005 1968.500 -0.020 0.003 -0.027 0.003 -0.014 0.005 1969.500 -0.017 0.004 -0.046 0.006 0.007 0.006 1970.500 -0.018 0.005 -0.027 0.008 -0.011 0.004 1971.500 -0.009 0.005 -0.026 0.004 0.005 0.007 1972.500 -0.018 0.006 -0.054 0.006 0.011 0.008 1973.500 -0.015 0.010 -0.015 0.015 -0.015 0.007 1974.500 -0.006 0.003 -0.023 0.004 0.007 0.008 1975.500 -0.004 0.001 -0.007 0.004 -0.002 0.002 1976.500 -0.007 0.004 -0.029 0.010 0.010 0.004 1977.500 0.001 0.005 0.003 0.002 -0.001 0.010 1978.500 0.002 0.004 0.003 0.003 0.001 0.008 1979.500 -0.002 0.003 0.002 0.004 -0.004 0.004 1980.500 0.004 0.003 0.003 0.007 0.004 0.006 1981.500 0.004 0.002 0.018 0.002 -0.008 0.002 1982.500 -0.015 0.004 -0.025 0.004 -0.007 0.009 1983.500 -0.023 0.006 -0.002 0.006 -0.040 0.010 1984.500 -0.004 0.002 0.012 0.005 -0.018 0.004 1985.500 -0.004 0.006 -0.002 0.005 -0.006 0.008 1986.500 -0.008 0.003 -0.012 0.004 -0.005 0.003 1987.500 -0.013 0.002 -0.014 0.002 -0.012 0.004 1988.500 0.004 0.003 0.006 0.004 0.003 0.003 1989.500 0.001 0.002 0.006 0.005 -0.004 0.002 1990.500 -0.004 0.002 -0.009 0.004 0.001 0.005 1991.500 0.004 0.002 -0.003 0.001 0.010 0.004 1992.500 -0.000 0.002 0.010 0.004 -0.009 0.002 1993.500 0.002 0.002 0.004 0.004 0.000 0.006 1994.500 0.008 0.004 0.012 0.005 0.004 0.004 1995.500 0.002 0.004 -0.005 0.005 0.008 0.004 1996.500 0.020 0.004 0.022 0.005 0.019 0.003 1997.500 0.010 0.005 -0.001 0.005 0.020 0.006 1998.500 0.004 0.004 0.021 0.005 -0.009 0.005 1999.500 0.009 0.007 0.030 0.005 -0.008 0.009 2000.500 0.012 0.002 0.035 0.005 -0.006 0.004 2001.500 0.017 0.002 0.027 0.007 0.008 0.004 2002.500 0.018 0.002 0.025 0.007 0.013 0.003 2003.500 0.032 0.004 0.032 0.005 0.031 0.004 2004.500 0.034 0.003 0.043 0.003 0.028 0.006 2005.500 0.026 0.002 0.038 0.002 0.016 0.003 2006.500 0.035 0.001 0.041 0.003 0.030 0.003 2007.500 0.026 0.002 0.042 0.003 0.014 0.003 2008.500 0.033 0.001 0.048 0.003 0.021 0.002 2009.500 0.035 0.001 0.042 0.004 0.029 0.004 2010.500 0.029 0.003 0.039 0.002 0.020 0.005 2011.500 0.029 0.003 0.026 0.004 0.032 0.005 2012.500 0.036 0.004 0.041 0.002 0.033 0.006 2013.500 0.041 0.002 0.053 0.002 0.031 0.003 2014.500 0.046 0.002 0.042 0.005 0.050 0.001 2015.500 0.053 0.004 0.040 0.006 0.063 0.003 2016.500 0.050 0.003 0.058 0.004 0.043 0.004 2017.500 0.066 0.002 0.077 0.003 0.057 0.004 2018.500 0.065 0.002 0.068 0.004 0.062 0.002 2019.500 0.066 0.004 0.074 0.004 0.060 0.005 2020.500 0.067 0.003 0.076 0.002 0.059 0.004 2021.500 0.070 0.002 0.073 0.005 0.067 0.002 2022.500 0.075 0.001 0.076 0.004 0.075 0.001 2023.500 0.073 0.001 0.073 0.004 0.072 0.003