[{"Year":1971,"PR Citations":1409},{"Year":1972,"PR Citations":1835},{"Year":1973,"PR Citations":2902},{"Year":1974,"PR Citations":1202},{"Year":1975,"PR Citations":959},{"Year":1976,"PR Citations":6574},{"Year":1977,"PR Citations":1866},{"Year":1978,"PR Citations":1753},{"Year":1979,"PR Citations":2403},{"Year":1980,"PR Citations":2417},{"Year":1981,"PR Citations":3355},{"Year":1982,"PR Citations":2348},{"Year":1983,"PR Citations":2934},{"Year":1984,"PR Citations":2188},{"Year":1985,"PR Citations":4121},{"Year":1986,"PR Citations":2879},{"Year":1987,"PR Citations":2756},{"Year":1988,"PR Citations":3095},{"Year":1989,"PR Citations":3052},{"Year":1990,"PR Citations":4828},{"Year":1991,"PR Citations":3615},{"Year":1992,"PR Citations":4662},{"Year":1993,"PR Citations":6641},{"Year":1994,"PR Citations":6575},{"Year":1995,"PR Citations":13976},{"Year":1996,"PR Citations":10678},{"Year":1997,"PR Citations":9887},{"Year":1998,"PR Citations":9547},{"Year":1999,"PR Citations":23608},{"Year":2000,"PR Citations":26871},{"Year":2001,"PR Citations":23577},{"Year":2002,"PR Citations":21899},{"Year":2003,"PR Citations":24139},{"Year":2004,"PR Citations":33607},{"Year":2005,"PR Citations":31548},{"Year":2006,"PR Citations":22775},{"Year":2007,"PR Citations":24960},{"Year":2008,"PR Citations":20384},{"Year":2009,"PR Citations":15433},{"Year":2010,"PR Citations":21028},{"Year":2011,"PR Citations":26958},{"Year":2012,"PR Citations":19101},{"Year":2013,"PR Citations":15227},{"Year":2014,"PR Citations":14396},{"Year":2015,"PR Citations":24183},{"Year":2016,"PR Citations":16351},{"Year":2017,"PR Citations":16947},{"Year":2018,"PR Citations":24756},{"Year":2019,"PR Citations":23400},{"Year":2020,"PR Citations":15826},{"Year":2021,"PR Citations":13878},{"Year":2022,"PR Citations":11121},{"Year":2023,"PR Citations":6120},{"Year":2024,"PR Citations":2927},{"Year":2025,"PR Citations":462}]