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Year | Impact factor (IF) | Fact sheet | IF and usage report (PDFs): for Editors |
---|---|---|---|
2019 | 7.890 | IF fact sheet | |
2018 | 7.755 | IF fact sheet | Pending |
2017 | 6.754 | ||
2016 | 6.264 | IF fact sheet | IF and usage report |
2015 | 6.103 | IF fact sheet | |
2014 | 6.035 | IF fact sheet | |
2013 | 5.939 | IF fact sheet | |
2012 | 5.785 | IF fact sheet | |
2011 | 5.912 | IF fact sheet | |
2010 | 6.186 | IF fact sheet | |
2009 | 5.653 | IF fact sheet | |
2008 | 5.182 | IF fact sheet | –– |
2007 | 4.654 | — | –– |
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