Although I don't have bipolar, I have BPD (borderline personality disorder). It's hard to say what %. Percentage figures for bipolar & BPD are still all over the place from survey to survey. The last one I saw said 70% of people with BPD attempt suicide. It's something I struggle with, but it goes it cycles. Every time a bad cycle ends I hope there won't be another cycle, but it always seems to happen. I'm hoping with the new meds & a better therapist I'll never do SI or planning or attempts ever again! It's been about a month now and it's still almost impossible to do things. Life's getting better but that depression is bad. I guess that's the bad thing about having BPD is that meds don't take away depression, but supposedly dialectical behavior therapy can.