Does anybody know what GW Bush's SAT scores were?

I'm just wondering, because he seems far too stupid to have been accepted at Yale. Why do I say this? Well, his butchery of the English language is well-doented. I always figured he got in as a "legacy", kind of like Flounder in Animal House. But I could be wrong. Maybe he just has a speech impediment. Please enlighten me if you have any information. Thanks.