FishEye is not showing number for total lines of code when I use the rest api

I am trying to get the data for the total lines of code, lines added, lines removed from a repository in svn.

This is what I do for the GET request using fisheye rest api

http://fecru.atlassian.com/rest/api/1.0/rest-service-fe/revisionData-v1/pathHistory/{repository}?path=

According to the documentation in https://docs.atlassian.com/fisheye-crucible/3.10.3/wadl/fisheye.html#, it should return something like this

added readme 1 first revision 2 second revision

but the numbers of total line, lines added, and lines removed always show zero on my end.

I tried to follow this https://confluence.atlassian.com/fisheye/cannot-view-lines-of-code-information-in-fisheye-298977102.html and https://confluence.atlassian.com/fishkb/calculate-lines-of-code-metric-for-svn-branches-290751257.html

but it still gives me zero for the lines of code.

Any help is appreciated. Thank you very much