operating lease agreements . included in these amounts was contingent rent expense of $ 3.6 million , $ 2.0 million and $ 0.6 million for the years ended december 31 , 2011 , 2010 and 2009 , respectively . the operating lease obligations included above do not include any contingent rent . sponsorships and other marketing commitments within the normal course of business , the company enters into contractual commitments in order to promote the company 2019s brand and products . these commitments include sponsorship agreements with teams and athletes on the collegiate and professional levels , official supplier agreements , athletic event sponsorships and other marketing commitments . the following is a schedule of the company 2019s future minimum payments under its sponsorship and other marketing agreements as of december 31 , 2011 : ( in thousands ) .
what was the percentage increase the contingent rent expense from 2010 to 2011
the amounts listed above are the minimum obligations required to be paid under the company 2019s sponsorship and other marketing agreements . the amounts listed above do not include additional performance incentives and product supply obligations provided under certain agreements . it is not possible to determine how much the company will spend on product supply obligations on an annual basis as contracts generally do not stipulate specific cash amounts to be spent on products . the amount of product provided to the sponsorships depends on many factors including general playing conditions , the number of sporting events in which they participate and the company 2019s decisions regarding product and marketing initiatives . in addition , the costs to design , develop , source and purchase the products furnished to the endorsers are incurred over a period of time and are not necessarily tracked separately from similar costs incurred for products sold to customers . the company is , from time to time , involved in routine legal matters incidental to its business . the company believes that the ultimate resolution of any such current proceedings and claims will not have a material adverse effect on its consolidated financial position , results of operations or cash flows . in connection with various contracts and agreements , the company has agreed to indemnify counterparties against certain third party claims relating to the infringement of intellectual property rights and other items . generally , such indemnification obligations do not apply in situations in which the counterparties are grossly negligent , engage in willful misconduct , or act in bad faith . based on the company 2019s historical experience and the estimated probability of future loss , the company has determined that the fair value of such indemnifications is not material to its consolidated financial position or results of operations . 9 . stockholders 2019 equity the company 2019s class a common stock and class b convertible common stock have an authorized number of shares of 100.0 million shares and 11.3 million shares , respectively , and each have a par value of $ 0.0003 1/3 per share . holders of class a common stock and class b convertible common stock have identical rights , including liquidation preferences , except that the holders of class a common stock are entitled to one vote per share and holders of class b convertible common stock are entitled to 10 votes per share on all matters submitted to a stockholder vote . class b convertible common stock may only be held by kevin plank .