I certainly don't have a better number, and I'm not really disposed to do heavy research, but if you had been running a contest, I would have guessed much higher.
I will say that I would have significant theological differences with Mr. LaHaye.
Well, we would be happy for the Reformed people to cross over to the Presbyterian side. Nothing against the Presbyterian church: I grew up in an affiliated primary school in HK and it alluded to Covenant theology in Bible lessons (which are legal in HK's education systems), and attended one here in New Zealand. But I do think the Bible teaches the Baptist model of church governance, salvation and election, and eschatology (pre-trib premillennial).
And baptism and the Lord's Supper aren't sacraments. They are ordiances. :-)