title: How to create a counter of multiples variables with Python?
body: <p>I have a file which shows me many variables such as A1, A2, A3... A333, B1, B2, B3 and C1, C2, C3... C151. The variables are separeted by semicolon. How can I count how often each of the multiples values occur on my file? </p>
  
  <p>Each of the value/variable refers to a specific crime commited by companies in Brazil.</p>
  
  <p>After organizing the data, I should be able to say, for example, that the value A9 (which stands for the slave work) appears 100 times. Or that the value C88 appears 20 times.</p>
  
  <p>Here is a print of my screen: <a href="http://tinypic.com/view.php?pic=4j4ac5&amp;s=9#.WiGss2nyuUk" rel="nofollow noreferrer">http://tinypic.com/view.php?pic=4j4ac5&amp;s=9#.WiGss2nyuUk</a></p>
  
  <p>And I also uploaded my txt file online: <a href="https://file.io/Bxlrgt" rel="nofollow noreferrer">https://file.io/Bxlrgt</a> and here: <a href="https://ufile.io/3wsmu" rel="nofollow noreferrer">https://ufile.io/3wsmu</a></p>
  
  <p>Here is a part of my file, which is on the link above:</p>
  
  <pre><code>A7; C38; C25; C3; C20; C18; C27; A1; A2; D1
  A21; A22; C29; C7; C14
  A1; A5; C4; C15; C23
  A1; A5; C26; C23; C7
  A1; A2; C4; C51; C52; C23
  A12; C1; C53; C35
  C30; C31; C22; C54; C51; C1; C55; C53; C56; C52; C57; C58; C59; C26; C3; C36; C60; C13; C15; C14; A12; A4
  A9; A1; A2; A5; C47; 
  A23; A1; A2; B1; A21; F1; A4; C29; C61; C26; C1; C56; C27; C37; C20; C23; C62; C5; C15; C63; C50
  A24; A49; A46; A25; A26; A17; A12; A30; A51; A31; A53; A29; A54; A28; A27; A32
  A1; C4; C26; C1; C3; A2; C23; A6
  A1; A4; C13; C22; C65; C21; C64; A33; C19; C23; A7; C20
  A1; A2; A3; A4; A5; A6; A7; B1; C1; C2; C3; C4; C5; C6; C7; C8; C9; C10; C11; C12; C13; C14; C15; C16; C17; C18; C19; C20; C21; C22
  A1; A2; C23
  </code></pre>