Workflow status codes (used for view filter) of SharePoint

Here is the list of the status codes used to maintain the workflow statuses. This list might be useful when anyone creates a view based on workflow status. If you are creating a view for a list filtered by the workflow status, you would need use the number rather than the words (e.g. 2 instead of In Progress, 4 instead of Cancelled etc)

Not Started 0
Failed on Start 1
In Progress 2
Error Occurred 3
Canceled 4
Completed 5
Failed on Start (retrying) 6
Error Occurred (retrying) 7
Canceled 15
Approved 16
Rejected 17