title: Best collection for data in C# .NET
body: <p>I have to store this data:</p>
  
  <pre><code> "AL" =&gt; 1997
   "AK" =&gt; 1977
   ...
   "WY" =&gt; 1997
  </code></pre>
  
  <p>What's the best way to store this in .NET? Shall I use just arrays, or arrayList, or another collection?</p>