Performance Indicators


Indicator 2017 2018 2019 2020 2021
1. Impact Factor 6.05 6.85 6.34 6.53 7.26
2. Pages published 2,231 2,264 2,241 2,358 3,501
3. Research reports and reviews published 169 159 165 176 272
4. Research reports and reviews submitted 923 992 1,080 1,329 1,093
5. Acceptance rate 18% 16% 15% 13% 20%
6. Weeks to respond to submission (average) 4.8 4.7 5.5 5.0 4.9
7. Months from final acceptance to online publication (average) 1.9 1.8 1.6 1.6 1.1
8. Percent of pages devoted to commissioned material 21% 17% 19% 14% 12%
Note: figures for 4 onwards relate to research reports and unsolicited reviews