Index and ranking

Impact factor is 3.182 according to the 2019 release of Journal Citation Reports®.

Impact factor is 3.249 according to the 2018 release of Journal Citation Reports®.

Impact factor is 2.916 according to the 2017 release of Journal Citation Reports®.

Impact factor is 3.609 according to the 2016 release of Journal Citation Reports®.

Impact factor is 3.271, according to 2015 edition of Journal Citation Reports®.

Impact factor is 2.639, according to 2014 edition of Journal Citation Reports®.