(1) Income tax adjustments reflect the tax effects of non-GAAP adjustments which are calculated by applying the applicable tax rate by jurisdiction to the non-GAAP adjustments listed above, and also include any identified tax items. In the fourth quarter of 2012, a valuation allowance was established against our U.S. net deferred tax assets. Similarly, in the fourth quarter of 2014, valuation allowances were established against our foreign net deferred tax assets in two foreign jurisdictions. As the U.S. and the two foreign jurisdictions are profitable on a non-GAAP basis, the 2015 and 2014 non-GAAP tax provisions are being calculated assuming there is no valuation allowance in these jurisdictions.

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