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Year | Impact factor (IF) | Fact sheet | Accompanying report (for editors) | |
---|---|---|---|---|
2021 | 12.008 | |||
2020 | 9.266 | IF fact sheet | ||
2019 | 7.890 | IF fact sheet | ||
2018 | 7.755 | IF fact sheet | ||
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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