pre_text: The following is a summary of stock option activity during fiscal 2019: Net income before income taxes included compensation expense related to the amortization of the Company’s stock option awards of $0.1 million during both fiscal 2019 and fiscal 2018. At September 2019, total unamortized compensation expense related to stock options was approximately $0.3 million. This unamortized compensation expense is expected to be amortized over approximately the next 38 months. The aggregate intrinsic value of stock options exercisable was approximately $0.2 million and $0.3 million at September 2019 and September 2018, respectively. The total intrinsic value of stock options exercised was $0.1 million in both fiscal 2019 and fiscal 2018. The total fair value of stock options vested was $0.4 million during both fiscal 2019 and fiscal 2018.
table: Number of Shares Weighted Average Exercise Price
table: Outstanding at September 2018 33,800 $  77.85
table: Granted 5,450 84.00
table: Exercised (2,800) 79.22
table: Forfeited/Expired — —
table: Outstanding at September 2019 36,450 $  78.67
question: Analyse this data from a financial earnings document. What is the difference in the total number of shares outstanding between 2018 and 2019?