Contribution Statistics
Contribution statistics from 1982 to 2015, 2016 and semesters of 2017:
by Country
by Country and Publication Country (articles)
Contribution statistics from 1982 to 2013, 2014 to 2017 and years of 2014, 2015, 2016 and 2017.
by Country and Year
by Cooperating Center and Year
Other statistics:
by Publication Year
by Publication Year and Type of Literature
by Publication Country and Year (articles)
by Publication Country and Year (articles full text)
by Publication Year and Language
by Type of Literature
by Language