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CMI Working Papers 97, 98 and 99

The CMI Mortality Projections Model, CMI_2016

CMI Working Papers 97, 98 and 99 are issued alongside the updated version of the CMI Mortality Projections Model, CMI_2016. An Executive Summary has been produced for Working Paper 97 and is contained in a separate document; this provides a brief synopsis of the working paper and is publicly-available.

The latest version of the Model is calibrated to England & Wales population mortality data up to 31 December 2016. Its method differs in a number of respects from earlier versions, following the consultation described in Working Papers 90, 91 and 93.

Core Projections generated by CMI_2016 produce lower expectations of life than those produced by CMI_2015 (with other parameters held constant) for all ages for both males and females.

Working Paper 97 contains numerical results from CMI_2016, and commentary. It also contains analysis of recent mortality in the general population and in the CMI SAPS dataset.

Previous versions of the Model have been accompanied by a User Guide. For CMI_2016 this is superseded by a combination of Working Paper 98, which contains technical details of the calculations, and Working Paper 99, which describes how to use the software. Two additional spreadsheets have been released to show the derivation of the CMI_2016 dataset.

The software has been tested and found to work properly using Excel 2010 and Excel 2016 in a Windows environment. If you see a yellow banner in Excel with buttons saying e.g. ‘Enable Editing’ or ‘Enable Content’ then you will need to click on these buttons in order to run the software.  If however you see a red banner and the button to proceed is disabled preventing you from running the software, than please let us know at

The Committee held a meeting at Staple Inn on 11 April 2017, in conjunction with the Staple Inn Actuarial Society (SIAS), to discuss recent mortality experience and the prospects for future mortality improvements.  Slides and an audio recording are available from the SIAS website.



Access the previous versions of the CMI Mortality Projections Model on the Mortality Projections page.

Contact Details

If you have any questions about the CMI please email