Explanation of Responses:
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1)
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On February 23, 2016, the reporting person was granted 10,467 restricted stock units, which shall vest and become earned ratably over three years based on certain performance criteria for each vesting year March 15, 2017, 2018, and 2019. Due to the retirement of the reporting person on June 30, 2016, the performance criteria were deemed met and the shares became fully vested. Vested shares will be delivered to the reporting person on January 1, 2017.
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2)
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Includes 0.005 shares acquired in June 2016, under the Issuer's Dividend Reinvestment Plan.
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3)
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On February 24, 2015, the reporting person was granted 8,681 restricted stock units, which shall vest and become earned ratably over three years based on certain performance criteria for each vesting year March 15, 2016, 2017, and 2018. The performance criteria for 2016 were met, resulting in vesting of 2,893 restricted stock units. Due to the retirement of the reporting person on June 30, 2016, the performance criteria were deemed met and the shares became fully vested. Vested shares will be delivered to the reporting person on January 1, 2017.
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4)
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On February 25, 2014, the reporting person was granted 8,500 restricted stock units, which shall vest and become earned ratably over three years based on certain performance criteria for each vesting year February 25, 2015, 2016, and 2017. The performance criteria for 2016 were met, resulting in vesting of 2,834 restricted stock units. Due to the retirement of the reporting person on June 30, 2016, the performance criteria were deemed met and the shares became fully vested. Vested shares will be delivered to the reporting person on January 1, 2017.
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5)
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On December 31, 2015, the reporting person was granted 1,256 restricted stock units, which shall vest and become earned ratably over three years based on certain performance criteria for each vesting year March 15, 2017, 2018, and 2019. Due to the retirement of the reporting person on June 30, 2016, the performance criteria were deemed met and the shares became fully vested. Vested shares will be delivered to the reporting person on January 1, 2017.
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6)
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On February 25, 2014, the reporting person was granted an option to purchase 10,204 shares of common stock. The option vests ratably over three years based on certain performance criteria for each vesting year ending February 25, 2015, 2016, and 2017. The performance criteria for 2016 were met, resulting in vesting of the option as to 3,402 shares. Due to the retirement of the reporting person on June 30, 2016, the performance criteria were deemed met and the option became fully exercisable.
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7)
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On February 24, 2015, the reporting person was granted an option to purchase 16,928 shares of common stock. The option vests ratably over three years based on certain performance criteria for each vesting year March 15, 2016, 2017, and 2018. The performance criteria for 2016 were met, resulting in vesting of the option as to 5,642 shares. Due to the retirement of the reporting person on June 30, 2016, the performance criteria were deemed met and the option became fully exercisable.
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8)
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On February 23, 2016, the reporting person was granted an option to purchase 21,705 shares of common stock. The option vests ratably over three years based on certain performance criteria for each vesting year March 15, 2017, 2018, and 2019. Due to the retirement of the reporting person on June 30, 2016, the performance criteria were deemed met and the option became fully exercisable.
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9)
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The option is exercisable in five equal annual installments beginning on 2/20/2008.
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10)
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The option is exercisable in four equal annual installments beginning on 02/21/2013.
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11)
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The option is exercisable in four equal annual installments beginning on 2/22/2012.
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12)
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The option is exercisable in four equal annual installments beginning on 02/23/2011.
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13)
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The option is exercisable in five equal annual installments beginning on 2/26/2009.
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14)
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The option is exercisable in three equal annual installments beginning on 02/26/2014.
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