Third, the components of the costs that we exclude in our calculation of non-GAAP operating income may differ from the components that our peer companies exclude when they report their results of operations.

ENGADGET: Google's Q4 2011 results: $2.71 billion profit, $8.13 billion in revenue, Wall Street disappointed

Factors like workplace conditions, cost of living, income, taxes, and unemployment rates can differ vastly from state to state.

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