How does Google autocompletethis query?

my friends are all

---

• 

  

  my friends are all

  10,000
• 

  

  my friends are all

  9,000
• 

  

  my friends are all

  8,000
• 

  

  my friends are all

  7,000
• 

  

  my friends are all

  6,000
• 

  

  my friends are all

  5,000
• 

  

  my friends are all

  4,000
• 

  

  my friends are all

  3,000
• 

  

  my friends are all

  2,000
• 

  

  my friends are all

  1,000

GuessReveal