[{"Year":1957,"PR Citations":1},{"Year":1958,"PR Citations":2},{"Year":1963,"PR Citations":1},{"Year":1969,"PR Citations":3},{"Year":1970,"PR Citations":11},{"Year":1971,"PR Citations":17},{"Year":1972,"PR Citations":7},{"Year":1973,"PR Citations":17},{"Year":1974,"PR Citations":23},{"Year":1975,"PR Citations":30},{"Year":1976,"PR Citations":23},{"Year":1977,"PR Citations":24},{"Year":1978,"PR Citations":30},{"Year":1979,"PR Citations":23},{"Year":1980,"PR Citations":32},{"Year":1981,"PR Citations":55},{"Year":1982,"PR Citations":67},{"Year":1983,"PR Citations":85},{"Year":1984,"PR Citations":105},{"Year":1985,"PR Citations":98},{"Year":1986,"PR Citations":140},{"Year":1987,"PR Citations":135},{"Year":1988,"PR Citations":142},{"Year":1989,"PR Citations":231},{"Year":1990,"PR Citations":288},{"Year":1991,"PR Citations":358},{"Year":1992,"PR Citations":480},{"Year":1993,"PR Citations":591},{"Year":1994,"PR Citations":681},{"Year":1995,"PR Citations":940},{"Year":1996,"PR Citations":1172},{"Year":1997,"PR Citations":1484},{"Year":1998,"PR Citations":1888},{"Year":1999,"PR Citations":2298},{"Year":2000,"PR Citations":3135},{"Year":2001,"PR Citations":3829},{"Year":2002,"PR Citations":4638},{"Year":2003,"PR Citations":5598},{"Year":2004,"PR Citations":6856},{"Year":2005,"PR Citations":8432},{"Year":2006,"PR Citations":10458},{"Year":2007,"PR Citations":12413},{"Year":2008,"PR Citations":14817},{"Year":2009,"PR Citations":17093},{"Year":2010,"PR Citations":20428},{"Year":2011,"PR Citations":24630},{"Year":2012,"PR Citations":30210},{"Year":2013,"PR Citations":34827},{"Year":2014,"PR Citations":40490},{"Year":2015,"PR Citations":46268},{"Year":2016,"PR Citations":51740},{"Year":2017,"PR Citations":57328},{"Year":2018,"PR Citations":64550},{"Year":2019,"PR Citations":75209},{"Year":2020,"PR Citations":95133},{"Year":2021,"PR Citations":117672},{"Year":2022,"PR Citations":125172},{"Year":2023,"PR Citations":124579},{"Year":2024,"PR Citations":135362},{"Year":2025,"PR Citations":101842},{"Year":2026,"PR Citations":413}]