I would check out a few earlier posts on the topic, this one appears to be the most recent, and it is linked with some older posts that are still relevant:
Is 'Home' button still a must?
Slowly but surely, the percentage of people who are aware that the logo navigates to home will continue to rise. But honestly right now I think it comes down to your user base, 100%. This would be a great question for you to tackle with a round of usability studies, especially since you could include it as a quick and easy add-on to a bigger study.
Remember to give some thought to when they want to go home, and why.
- Are they wanting to see an overview of your website?
- Are they trying
to get somewhere specific, but the only path they know of is through
the home page? (In which case, maybe you could provide clearer
- Are they genuinely lost and don't know where
they want to go?
What action did they take directly before, and what are they trying to accomplish by going home? Maybe there's a more intuitive way to get them from point A to point B.