title: Tableau: how to count by year?
body: <p>I'm new to Tableau. I have a dataset with video games and the year they were released. I would like to make a distribution of the games released per year. 
  The x-axis is the years, but the y-axis should be the count of the times that year was mentioned as the release date. I can't seem to figure out how to do this. </p>
  
  <p>Is there also a nice way to make intervals for every 5 years instead of plotting all the years? </p>