Performance indicators


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