pre_text: Share Repurchase Program In both fiscal 2019 and 2018, our board of directors authorized increases of $1.5 billion in our share repurchase program. Common shares repurchased under the share repurchase program were as follows: At fiscal year end 2019, we had $1.5 billion of availability remaining under our share repurchase authorization.
table: Fiscal
table: 2019 2018 2017
table: (in millions)
table: Number of common shares repurchased 12 10 8
table: Repurchase value $ 1,014 $ 966 $ 621
question: Analyse this data from a financial earnings document. What was the change in the Number of common shares repurchased in 2019 from 2018?