| Reason | 
        2003 | 
        2004 | 
        2005 | 
        2006 | 
        2007 | 
        2008 | 
        2009 | 
        2010 | 
        2011 | 
        2012 | 
        Frequency | 
        % | 
       
      
        | Not Understand | 
        4 | 
        3 | 
        4 | 
        1 | 
        5 | 
        2 | 
        8 | 
        3 | 
        2 | 
        3 | 
        35 | 
        35.35% | 
       
      
        | Financial | 
        5 | 
        5 | 
        7 | 
        3 | 
        6 | 
        3 | 
        6 | 
        3 | 
        1 | 
        3 | 
        42 | 
        42.42% | 
       
      
        | Careless  | 
        2 | 
        1 | 
        2 | 
        2 | 
        1 | 
        3 | 
        3 | 
        1 | 
        2 | 
        3 | 
        20 | 
        20.20% | 
       
      
        | Fear  | 
        - | 
        - | 
        1 | 
        - | 
        - | 
        - | 
        1 | 
        - | 
        - | 
        - | 
        2 | 
        2.03% | 
       
      
        |   | 
        11 | 
        9 | 
        14 | 
        6 | 
        12 | 
        8 | 
        18 | 
        7 | 
        5 | 
        9 | 
        99 | 
          | 
       
      |