Just wondering if anyone has a guestimate of how often induced labour (with Syntocinin in my case) leads to use of epidural?

My labour was induced two days after my waters broke (another question - why does labour sometimes not start after your waters break?), I think they used low dose Syntocinin, coz the contractions were still five-minutely after about 3 hours, which was when I asked for an epidural coz I was so tired (after having sporadic contractions for more than two days prior). It seems like this is a reasonably common story.

I guess I'd like to have some hope for having an active labour and unassisted birth if I need to be induced next time around.