What is the percent GC (or AT) content of the domestic cat genome?

I want to know the percent GC (or AT) content of the genome of Felis catus, the domestic cat. You must report the value and either (1) cite the source in peer-reviewed published literature OR (2) show how to determine it using bioinformatics tools such as those available at NCBI (e.g. Entrez Med / Genome). However you want to prove it, it must be proven. Exhaustive Google searches have not given me what I want, and I have been to the cat genome lab sites, so good luck.