Inserting Multiple instances into a databse

I am using MySQL to capture the form data. In the form I have a Driver License section which can have multiple instances.

In the workflow I am using the "Execute SQL query" module to insert data. Initially I can insert information from the non-repeating subforms, successfully. However, workflow inserts no information from repeating subforms. Below is an example of the XPATH used.

/process_data/xfaform/object/data/xdp/datasets/data/App/DriverLicense/ drvlicstate

Is the above format correct ? How can I insert the second and third instances ?

Thanks
Aditya