Ours went up by $800 a month when our new insurance year started in Dec.

Edit: This is for a policy through my husband's employer. The deductible is already pretty high ($4000) and we have an HSA to go along with it. We opted to take me off (left him and the kids on) and I found a policy for around $400 a month for myself with an even higher deductible ($7000 I think).

Ours went up by $800 a month when our new insurance year started in Dec.