(3) | On February 28, 2017, the registrant filed a prospectus supplement (the “Earliest Prospectus Supplement”) to the prospectus included in its Registration Statement on Form S-3 (Registration Statement No. 333-210174) (the “Earliest Registration Statement”) and concurrently submitted a fee of $34,770. The Earliest Prospectus Supplement related to the registrant’s offer and sale from time to time of shares of the registrant’s common stock, no par value per share, having an aggregate gross sales price of up to $300 million from time to time under an at-the-market program (the “2017 ATM Program”). On August 25, 2019, the registrant filed a Registration Statement on Form S-3 (Registration No. 333-231021) and deferred payment of the registration fee pursuant to Rules 456(b) and 457(r). On August 12, 2020, the registrant filed the Prior Prospectus Supplement with the Securities and Exchange Commission and concurrently submitted a registration fee of $20,378, after accounting for a fee offset of $18,562 related to unsold securities under the Earliest Prospectus Supplement. The total registration fee due, before accounting for the fee offset, was $38,940 (the “Prior Fee”). The Prior Prospectus Supplement related to the registrant’s offer and sale from time to time of shares of the registrant’s common stock, no par value per share, having an aggregate gross sales price of up to $300 million from time to time under an at-the-market program (the “2020 ATM Program”). As of the date of this prospectus supplement, $223,967,150.57 remains unsold under the 2020 ATM Program. Pursuant to Rule 457(p) under the Securities Act, a registration fee credit of $29,070.93, the amount of the Prior Fee attributable to the unsold securities under the Prior Prospectus Supplement, is available to offset the current registration fee. Following the filing of this prospectus supplement, $8,309.18 will remain available to offset future registration fees. |