How does Google autocompletethis query?

my dog has

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• 

  

  my dog has

  10,000
• 

  

  my dog has

  9,000
• 

  

  my dog has

  8,000
• 

  

  my dog has

  7,000
• 

  

  my dog has

  6,000
• 

  

  my dog has

  5,000
• 

  

  my dog has

  4,000
• 

  

  my dog has

  3,000
• 

  

  my dog has

  2,000
• 

  

  my dog has

  1,000

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