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| | Three months ended March 31, 2004 | | As a % of revenues | | | Three months ended June 30, 2004 | | As a % of revenues | | | Three months ended September 30, 2004 | | As a % of revenues | | | Three months ended December 31, 2004 | | As a % of revenues | | | Three months ended March 31, 2005 | | As a % of revenues | | | Three months ended June 30, 2005 | | As a % of revenues | | | Three months ended September 30, 2005 | | As a % of revenues | | | Three months ended December 31, 2005 | | As a % of revenues | |
GAAP Operating Expense | | $ | 180,902 | | 27.8 | % | | $ | 202,877 | | 29.0 | % | | $ | 432,676 | | 53.7 | % | | $ | 274,923 | | 26.7 | % | | $ | 268,538 | | 21.4 | % | | $ | 311,702 | | 22.5 | % | | $ | 395,459 | | 25.1 | % | | $ | 574,072 | | 29.9 | % |
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Less: Stock-based compensation | | | 76,473 | | 11.7 | % | | | 74,761 | | 10.7 | % | | | 67,981 | | 8.4 | % | | | 59,531 | | 5.8 | % | | | 48,908 | | 3.9 | % | | | 47,338 | | 3.4 | % | | | 46,308 | | 2.9 | % | | | 58,154 | | 3.0 | % |
In-process research and development | | | — | | — | | | | — | | — | | | | — | | — | | | | 11,343 | | 1.1 | % | | | — | | — | | | | — | | — | | | | 20,812 | | 1.3 | % | | | — | | — | |
Contribution to Google Foundation | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | 90,000 | | 4.7 | % |
Non-recurring portion of settlement of disputes with Yahoo | | | — | | — | | | | — | | — | | | | 201,000 | | 24.9 | % | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | |
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Non GAAP Operating Expense | | $ | 104,429 | | 16.1 | % | | $ | 128,116 | | 18.3 | % | | $ | 163,695 | | 20.4 | % | | $ | 204,049 | | 19.8 | % | | $ | 219,630 | | 17.5 | % | | $ | 264,364 | | 19.1 | % | | $ | 328,339 | | 20.9 | % | | $ | 425,918 | | 22.2 | % |
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| | Three months ended March 31, 2004 | | As a % of revenues | | | Three months ended June 30, 2004 | | As a % of revenues | | | Three months ended September 30, 2004 | | As a % of revenues | | | Three months ended December 31, 2004 | | As a % of revenues | | | Three months ended March 31, 2005 | | As a % of revenues | | | Three months ended June 30, 2005 | | As a % of revenues | | | Three months ended September 30, 2005 | | As a % of revenues | | | Three months ended December 31, 2005 | | As a % of revenues | |
GAAP Operating Income | | $ | 155,323 | | 23.8 | % | | $ | 170,958 | | 24.4 | % | | $ | 11,112 | | 1.4 | % | | $ | 302,799 | | 29.4 | % | | $ | 442,770 | | 35.2 | % | | $ | 475,698 | | 34.4 | % | | $ | 529,171 | | 33.5 | % | | $ | 569,640 | | 29.7 | % |
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Add: Stock-based compensation | | | 76,473 | | 11.7 | % | | | 74,761 | | 10.7 | % | | | 67,981 | | 8.4 | % | | | 59,531 | | 5.8 | % | | | 48,908 | | 3.9 | % | | | 47,338 | | 3.4 | % | | | 46,308 | | 2.9 | % | | | 58,154 | | 3.0 | % |
In-process research and development | | | — | | — | | | | — | | — | | | | — | | — | | | | 10,393 | | 1.0 | % | | | — | | — | | | | — | | — | | | | 20,812 | | 1.3 | % | | | — | | — | |
Contribution to Google Foundation | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | 90,000 | | 4.7 | % |
Non-recurring portion of settlement of disputes with Yahoo | | | — | | — | | | | — | | — | | | | 201,000 | | 24.9 | % | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | | | | — | | — | |
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Non GAAP Operating Income | | $ | 231,796 | | 35.5 | % | | $ | 245,719 | | 35.1 | % | | $ | 280,093 | | 34.7 | % | | $ | 372,723 | | 36.2 | % | | $ | 491,678 | | 39.1 | % | | $ | 523,036 | | 37.8 | % | | $ | 596,291 | | 37.7 | % | | $ | 717,794 | | 37.4 | % |
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