Performance Indicators


Indicator 2016 2017 2018 2019 2020
1. Impact Factor 5.79 6.05 6.85 6.34 6.53
2. Pages published 2,226 2,231 2,264 2,241 2,358
3. Research reports and reviews published 159 169 159 165 176
4. Research reports and reviews submitted 999 923 992 1,080 1,329
5. Acceptance rate 16% 18% 16% 15% 13%
6. Weeks to respond to submission (average) 4.9 4.8 4.7 5.5 5.0
7. Months from final acceptance to online publication (average) 2.1 1.9 1.8 1.6 1.6
8. Percent of pages devoted to commissioned material 19% 21% 17% 19% 14%
Note: figures for 4 onwards relate to research reports and unsolicited reviews