How often should a diabetic on insulin expect to have a hypoglycemic episode?

Can you answer ya7te7uja02’s question about Diabetes?:

I have Type 2 and I take metformin (Glucophage) and glimepiride (Amaryl), in addition to 30 IU of 24-hour insulin (Lantus) and about 100 IU of rapid acting insulin (Humalog 2-3 hr) each day.

My blood glucose is not controlled really well. It skates along in the 150-200 mg/dL range.

If I am to get my blood glucose under control, how often can I expect to have a hypoglycemic episode?

Implantable Insulin Pump