Elements
| Impact factor | SJR | SNIP | |
| 2016 | 4.038 | 1.899 | 1.610 |
| 2015 | 4.585 | 2.288 | 1.950 |
| 2014 | 4.463 | 2.462 | 2.190 |
| 2013 | 4.500 | 1.702 | 1.520 |
| 2012 | 3.156 | 1.398 | 1.080 |
| 2011 | 2.423 | 1.499 | 1.270 |
| 2010 | 3.105 | 1.732 | 1.650 |
| 2009 | 3.597 | 1.629 | 1.550 |
| 2008 | 3.069 | 1.879 | 2.010 |
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