← Back to introduction

citations per year

This metric, also called the time-scaled citation index, is just the mean number of citations per year, calculated as the total number of citations of an author divided by their academic age (number of years since their first publication),

$$C^{TS}=\frac{C^P}{\text{academic age}}=\frac{C^P}{Y-Y_0+1},$$

where \(Y\) is the current year and \(Y_{0}\) is the year of their first publication.

History

YearCTS
19972.0000
19987.5000
199914.6667
200021.0000
200129.0000
200242.6667
200357.0000
200480.1250
2005105.1111
2006135.9000
2007163.2727
2008188.1667
2009211.7692
2010239.7143
2011270.9333
2012297.8125
2013325.2353
2014346.4444
2015366.2105
2016384.4500
2017397.2857
2018409.7727
2019420.9130
2020431.4583
2021443.9200
2022454.5385
2023461.0370
2024468.3214
2025457.5862