Test execution/efficiency metrics gives the detailed 
information of test cases executions.
Total number of test cases
Total number of test cases execution
Total number of test cases passed
Total number of test cases failed
Total number of test cases not tested
Total number of test cases not applicable as these are 
depended on the test cases those are either not tested or 
failed test execution.

One missing category is blocked test cases. Examples:
- Software is not complete
- A software defect prevents executing a test case
- The test environment is broken or requires configuration
- Some dependency is not satisfied: test data, time of
month, another organization's cooperation, tester on
vacation. etc.