American Journal of Science
| Impact factor | SJR | SNIP | |
| 2016 | 4.099 | 2.420 | 1.140 |
| 2015 | 3.566 | 2.104 | 1.100 |
| 2014 | 2.917 | 2.217 | 1.380 |
| 2013 | 3.929 | 2.384 | 1.770 |
| 2012 | 3.600 | 2.215 | 1.540 |
| 2011 | 2.716 | 2.392 | 1.440 |
| 2010 | 3.045 | 2.235 | 1.710 |
| 2009 | 2.284 | 2.041 | 1.110 |
| 2008 | 2.270 | 2.069 | 1.120 |