Good advice Rory - that is eaxtly what I was looking for. I don't know why I didn't find that info earlier seeing I'm such a 'google queen'!

Well, to my surprise, Isobel didn't even make the Top 50 in WA in 2008. Isabella was #8 with a total of 144 occurrences which really isn't that much given there were 32139 births registered in WA in 2008 (so roughly 15000 baby girls). Bella came in at #50 with only 34 occurrences.

Keep the feedback coming girls but given that bit of info above, I really don't think Isobel is anywhere near as popular as I first thought.