pre_text: 2. Earnings Per Share: Basic earnings per share are computed by dividing net earnings by the weighted average number of shares of common stock outstanding for the period. Diluted
  earnings per share are computed by dividing net earnings by the sum of (a) the weighted average number of shares of common stock outstanding during the period and
  (b) the dilutive effect of potential common stock equivalents during the period. Stock options and unvested service-based RSU awards make up the common stock
  equivalents and are computed using the treasury stock method. The table below represents the basic and diluted earnings per share, calculated using the weighted average number of shares of common stock and potential
  common stock equivalents outstanding for the years ended March 31, 2017, 2018, and 2019: (1) Common stock equivalents not included in the computation of diluted earnings per share because the impact would have been anti-dilutive were 1,381 shares, 1,733
  shares, and 4,375 shares for the fiscal years ended March 31, 2017, 2018, and 2019, respectively.
table: Fiscal Year Ended March 31,
table: 2017 2018 2019
table: Net income $125,785 $4,910 $271,813
table: Computation of Basic EPS:
table: Weighted Average Shares Outstanding used in Computing Basic EPS 167,506 168,262 168,713
table: Basic earnings per share $0.75 $0.03 $1.61
table: Computation of Diluted EPS:
table: Weighted Average Shares Outstanding used in Computing Basic EPS 167,506 168,262 168,713
table: Effect of stock options 311 663 609
table: Weighted Average Shares Outstanding used in Computing Diluted EPS (1) 167,837 168,925 169,322
table: Diluted earnings per share $0.75 $0.03 $1.61
question: Analyse this data from a financial earnings document. What is the sum of the weighted average shares outstanding used in computing diluted EPS and the common stock equivalents not included in 2018?