One idea that comes to mind for making use of this data would be to transform this matrix into a CSV and use it as part of automatic lookup definition in order to provide additional context/knowledge about these events. Using the code (in your case 137) as the input field, and providing Facility and Severity as output fields.
I'm thinking columns like:
Code,Facility,Severity
1,kernel,0
2,kernel,1
...
18,mail,1
137,local1,0
http://docs.splunk.com/Documentation/Splunk/latest/User/CreateAndConfigureFieldLookups
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