Balanced budget (amendments) in U.S. States
I understand that 43 out of 50 U.S. states are constitutionally required to have balanced budgets. Are there identifiable trends in how and when these states implemented the requirement in their respective constitutions?
I ask with the federal debt limit in mind, which is clearly an extremely hot potato, but I'd ask that any answers stick to the how, what, and why of the 43 states that did it. For example:
How many states started out with balanced budget constitutions?
How many states amended their constitutions during a budget or credit crisis?
How many states amended their constitution for other reasons, and what were they?