In Jesus' parable, how often did the Pharisee praying in the temple say he fasted?

Answer: Twice a week

The Pharisee boasted, "I fast twice a week and pay tithes of all that I acquire."

““Two men went up to the temple to pray. One was a Pharisee and the other a tax collector. The Pharisee stood by himself and prayed, ‘God, I thank You that I am not like other men—swindlers, evildoers, adulterers—or even like this tax collector. I fast twice a week and pay tithes of all that I acquire.’”— Luke 18:10-12 (BSB)