how long can Napa Cabs Cellar?

[Christian Sobb]

Hello,

I have been collecting several 91's, 94's, 95's 96, 97, 98, 99's of California Cabs. I work for a California company so I find my self in Napa over the weekends. I'm fairly a novice but have dozens of bottles and a cellar chilled at 52 degrees. How long can these cellar for? They have been kept in cold storage since day one. I mainly have Caymus, Chimney Rock, Heitz, Silver Oak, Stags Leap Fay, Duckhorn, Pride, Peju, Justin, PlumpJack etc...
What is the optimal drinking age for each year? Is there a standard?

Thanks!