I'll conclude my portion of today's call with guidance. Incorporated into our guidance are the order trends that we've seen to-date and what we believe today to be appropriately conservative assumptions. Our results are inherently unpredictable and maybe materially affected by many factors, including a high level of uncertainty surrounding exchange rate fluctuations, as well as the global economy and consumer spending. It's not possible to accurately predict demand and therefore our actual results could differ materially from our guidance.
As we describe in more detail in our public filings. Issues such as settling intercompany balances and foreign currencies amongst our subsidiaries and favorable resolution of legal matters and changes to our effective tax rates can all have a material effect on guidance.
Our guidance further assumes that we don't conclude any additional business acquisitions, investments, restructuring or legal settlements, record any further revisions to stock-based compensation estimates and that foreign exchange rates remain approximately where they have been recently.
For Q1 2014 we expect net sales of between $18.2 billion and $19.9 billion or growth of between 13% and 24%. This guidance anticipates approximately 30 basis points of unfavorable impact from foreign exchange rates.
GAAP operating income or loss to be between $200 million loss and $200 million income compared with $181 million income in the first quarter of 2013. This includes approximately $350 million for stock-based compensation and amortization of intangible assets. We anticipate consolidated segment operating income, which excludes stock-based compensation and other operating expense to be between $150 million and $550 million, compared with $441 million in the first quarter of 2013.
We launched Prime in the U.S. nine years ago with free unlimited two-day shipping on 1 million items and an annual membership price of $79.
Today Prime selection has grown to over 19 million items even as fuel and transportation costs have increased the $79 price has remained the same. We know that customers love Prime as the usage of shipping benefit has increased dramatically since launch. On a per customer basis Prime members are ordering more items across more categories with free two day shipping than ever before.
With the increased cost of fuel and transportation as well as the increased usage among Prime members, we are considering increasing the price of Prime between $20 to $40 in U.S. We remain heads-down focus on driving a better customer experience through price selection and convenience. We believe putting customers first is the only reliable way to create lasting value for shareholders.
Thanks and with that Dave let's move to questions.
Dave Fildes - Senior Manager of IR: Great. Thanks, Tom. Let's move on to the Q&A portion of the call. Operator, will you please remind our listeners how to initiate a question.