How to delete the generated reports except the last 15?

I use gatling 2.2.3 in a separate maven project on Jenkins. Gatling creates reports in the target folder on jenkins. How can I automatically delete the generated reports except the last 15? Has someone such experience?

You can use the following jenkins plugin:
https://wiki.jenkins-ci.org/display/JENKINS/Discard+Old+Build+plugin

Hi Morten, that is exactly what I need. Thanks!