Meth users and abusers

We have seen a huge increase of Meth users in our hospital and the really sad thing is the increase in age, we are finding that it is not young kids who are using but people in their 30's upwards. The aggression that these people use during the hospital stay is draining the nursing staff and wearing us out.
Last week I looked after a 64yr old man who was high on Meth, and a very violent man-his daughter had supplied it to him during his hospital stay.
This week I looked after a 42 yr old man in a psychotic state from Meth use3 and abuse-unfortunatly he was the most violent I have ever experienced in my 20yrs of nursing.
The staff at work are blaming it on the falling economy, what do others think and are they experiencing this frightening increase.
I know I have had enough of the violence from these pts