Hello Tim - why not just attach to the data as it is? The Dimension is Year but all of the other values are Measures and just attaching to them as-is will allow you to individually use each measure.
This is in v 9.3
<edited - just saw I had missed a letter on my first response that made the post sound a bit crude - sorry>
USA (CH)_pv.twbx 83.2 KB
How the Data is Modeled is entirely dependent on what you intend to do with it in Tableau.
Certain things (Like Conditionally formatted crosstabs) are easier to do with EAV (Entity-Attribute-Value) modeled Data (Year - Metric - Value), but (IMO) a larger number of visualizations prefer having the data model as it is in the spreadsheet.
Having the Measures as individual columns allows for easier row-level calculations, as well as, Number formatting (Some metric may be $, while others are %).
Hate to be the "It-Depends" guy, but in this situation, it reall does depend on what the end goal is.
What Rody said.