Give a stream of consciousness and then the final answer. Over his career, Brady has won two league MVP awards, five Super Bowls, and four Super Bowl MVP Awards. A 12-time Pro Bowler, Brady has also twice led the NFL in passing yardage. As of November 2017, he currently owns the third-highest career passer rating (97.9) among quarterbacks with at least 1,500 career passing attempts. He has thrown for more passing yards and touchdowns than any quarterback in NFL postseason history; he also has won more playoff games than any other quarterback. As a result of his highly successful career, Brady is rated among the greatest quarterbacks of all time.

Answer this question: how many passing attempts does tom brady have?
To answer the above question, the relevant sentence is: As of November 2017, he currently owns the third-highest career passer rating (97.9) among quarterbacks with at least 1,500 career passing attempts.
So, the final answer is at least 1,500.