[{"Year":1913,"PR Citations":1},{"Year":1931,"PR Citations":1},{"Year":1932,"PR Citations":1},{"Year":1933,"PR Citations":1},{"Year":1935,"PR Citations":2},{"Year":1939,"PR Citations":1},{"Year":1940,"PR Citations":2},{"Year":1942,"PR Citations":1},{"Year":1943,"PR Citations":1},{"Year":1946,"PR Citations":2},{"Year":1948,"PR Citations":2},{"Year":1949,"PR Citations":5},{"Year":1950,"PR Citations":2},{"Year":1952,"PR Citations":5},{"Year":1957,"PR Citations":1},{"Year":1958,"PR Citations":3},{"Year":1959,"PR Citations":13},{"Year":1960,"PR Citations":14},{"Year":1961,"PR Citations":19},{"Year":1962,"PR Citations":34},{"Year":1963,"PR Citations":58},{"Year":1964,"PR Citations":56},{"Year":1965,"PR Citations":85},{"Year":1966,"PR Citations":65},{"Year":1967,"PR Citations":121},{"Year":1968,"PR Citations":206},{"Year":1969,"PR Citations":227},{"Year":1970,"PR Citations":358},{"Year":1971,"PR Citations":492},{"Year":1972,"PR Citations":647},{"Year":1973,"PR Citations":694},{"Year":1974,"PR Citations":839},{"Year":1975,"PR Citations":1153},{"Year":1976,"PR Citations":1317},{"Year":1977,"PR Citations":1531},{"Year":1978,"PR Citations":1727},{"Year":1979,"PR Citations":2173},{"Year":1980,"PR Citations":2334},{"Year":1981,"PR Citations":2644},{"Year":1982,"PR Citations":2969},{"Year":1983,"PR Citations":3351},{"Year":1984,"PR Citations":3497},{"Year":1985,"PR Citations":3942},{"Year":1986,"PR Citations":3923},{"Year":1987,"PR Citations":4014},{"Year":1988,"PR Citations":4535},{"Year":1989,"PR Citations":4842},{"Year":1990,"PR Citations":5356},{"Year":1991,"PR Citations":5926},{"Year":1992,"PR Citations":6587},{"Year":1993,"PR Citations":6889},{"Year":1994,"PR Citations":7432},{"Year":1995,"PR Citations":8223},{"Year":1996,"PR Citations":9263},{"Year":1997,"PR Citations":11136},{"Year":1998,"PR Citations":12395},{"Year":1999,"PR Citations":13259},{"Year":2000,"PR Citations":15782},{"Year":2001,"PR Citations":16967},{"Year":2002,"PR Citations":19343},{"Year":2003,"PR Citations":21819},{"Year":2004,"PR Citations":24915},{"Year":2005,"PR Citations":28198},{"Year":2006,"PR Citations":33015},{"Year":2007,"PR Citations":36058},{"Year":2008,"PR Citations":41127},{"Year":2009,"PR Citations":45666},{"Year":2010,"PR Citations":50614},{"Year":2011,"PR Citations":56731},{"Year":2012,"PR Citations":63780},{"Year":2013,"PR Citations":71432},{"Year":2014,"PR Citations":78763},{"Year":2015,"PR Citations":84469},{"Year":2016,"PR Citations":91043},{"Year":2017,"PR Citations":97536},{"Year":2018,"PR Citations":110287},{"Year":2019,"PR Citations":123086},{"Year":2020,"PR Citations":140032},{"Year":2021,"PR Citations":163869},{"Year":2022,"PR Citations":168735},{"Year":2023,"PR Citations":160248},{"Year":2024,"PR Citations":170667},{"Year":2025,"PR Citations":127768},{"Year":2026,"PR Citations":571}]