Depression Treatment Care

I have bipolar II. I find that virtually every day I have the symptoms of it. Sometimes they are very acute, which can be extremely difficult, whilst other times they are very mild, but nevertheless still there (i.e. little downswings or upswings).
To be honest, there has only been ONE day in the entire past year when I had no mood swings whatsoever (i.e. felt on an absolute even keel all day long, neither sad nor unduly happy, but in the middle).
It felt SO GOOD. I wish I could have more days like that.
So my question for other folks with bipolar is, how often, or what proprtion of the days do you feel symptom-free, i.e. normal?
Thanks in advance for any answers provided.