White Zin - no vintage?

[lizardbrains]

Please forgive me - it's the end of the month, so not much free money around - I bought a bottle of Corbett Canyon White Zin for $3.99! It tastes as you would expect: thin, mild, like water. I wouldn't even call this "wine".

Well, as I'm trying to put this into my wine notes, I'm looking for a vintage on there. I cannot find it anywhere! Nor does it say that it's blended, or anything along the line of not having a vintage. Am I missing something? How can I find the vintage?