1780 NA
1781 NA
1782 NA
1783 NA
1784 NA
1785 NA
1786 NA
1787 NA
1788 NA
1789 NA
1790 NA
1791 NA
1792 NA
1793 NA
1794 NA
1795 NA
1796 NA
1797 NA
1798 NA
1799 NA
1800 NA
1801 NA
1802 NA
1803 NA
1804 NA
1805 NA
1806 NA
1807 NA
1808 NA
1809 NA
1810 NA
1811 NA
1812 NA
1813 NA
1814 NA
1815 NA
1816 NA
1817 NA
1818 NA
1819 NA
1820 NA
1821 NA
1822 NA
1823 NA
1824 NA
1825 NA
1826 NA
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1828 1.42767617183571
1829 2.1218093739143
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1955 0.235309272928996
1956 0.641192753701954
1957 0.0521249560149165
1958 0.167556638388222
1959 2.50204665555302
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1966 0.994395272199304
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1970 1.10641378416291
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1977 1.32290987655446
1978 0.0521249560149165
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1985 1.69684913889547
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1991 1.93709746450851
1992 0.0521249560149165
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1997 0.742071632609984
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2002 2.47368705505274
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2006 0.87964574136832
2007 0.701990466592483
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2009 0.51705344510317
2010 1.54719438835604
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2012 -1.15289487972534
2013 3.01641529733537
2014 0.121769686870263
2015 -1.10470705530355
2016 -0.459213673559755
2017 NA
2018 NA
2019 NA
2020 NA
2021 NA
