What is 10 in Cat Years?

I'd like to wish my cat Ginger-Pickle a happy 10th birthday, but she doesn't seem to care very much. We gave her extra tuna today. She was pleased about that, but still hasn't gotten into the festive mood. I tried to explain the importance of the day, but I don't think she was listening. She just rested on a cushion, soaking up sun.


Perhaps she's figured it out after all.