title: Sorting Pandas DataFrames
body: <p>I have a Pandas Dataframe with car data. I want to find the best selling two Models for each Maker, and then rank the Makers, descending.</p>
  
  <pre><code>Maker   Model   No Sold(,000s)
  Ford    Kuga    35
  Ford    Focus   47
  Ford    Ka          31
  Ford    Fiesta      68
  Ford    Mondeo      55
  Ford    S-Max       34
  Ford    Galaxy      23
  Nissan  Leaf        28
  Nissan  Micra       31
  Nissan  Note            43
  Nissan  Pulsar      23
  Nissan  Juke            57
  Nissan  Qashqai     62
  Nissan  X-Trail         38
  Honda   Jazz            24
  Honda   Civic           32
  Honda   HRV         33
  Honda   CRV         29
  Honda   Accord          30
  Honda   NSX         15
  Toyota  Aygo            44
  Toyota  Auris           45
  Toyota  Avensis         35
  Toyota  Prius           32
  Toyota  Rav4            29
  Toyota  Land Cruiser    14
  Citroen C1          40
  Citroen C3  25
  Citroen C4  46
  Citroen DS3 35    
  Citroen DS4 31
  Citroen DS5 25    
  Audi    A1  23
  Audi    A3  47
  Audi    A4  30
  Audi    A6  20
  Audi    A8  18
  BMW 1 Series    36
  BMW 2 Series    20
  BMW 3 Series    53
  BMW 4 Series    21
  BMW 5 Series    27
  BMW 6 Series    24
  BMW 7 Series    16
  </code></pre>
  
  <p>Sorry, not sure of how to put Dataframe in here.</p>