Performance Indicators


Indicator 2015 2016 2017 2018 2019
1. Impact Factor 4.97 5.79 6.05 6.85 6.34
2. Pages published 2,042 2,226 2,231 2,264 TBC
3. Research reports and reviews published 160 159 169 159 165
4. Research reports and reviews submitted 960 999 923 992 1,080
5. Acceptance rate 17% 16% 18% 16% 15%
6. Weeks to respond to submission (average) 5.4 4.9 4.8 4.7 5.5
7. Months from final acceptance to online publication (average) 1.8 2.1 1.9 1.8 1.6
8. Percent of pages devoted to commissioned material 18% 19% 21% 17% TBC
Note: figures for 4 onwards relate to research reports and unsolicited reviews