least amount of boundaries in a completed innings

Here's one for spelly I guess, what is the least amount of boundaries scored in a completed 50 over innings in a ODI.
Also on how many occasions in a completed 50 over innings has there been no boundaries scored in the last 13.5 overs
It's happened today maybe, the aussies only 8 boundaries in 50 overs
Also on how many occasions in a completed 50 over innings has there been no boundaries scored in the last 13.5 overs
It's happened today maybe, the aussies only 8 boundaries in 50 overs