Out of Control Spending?

Fans of big government and higher taxes like to unequivocally state that after Proposition 13 passed in the mid-1970's in California which restricted large increases in property taxes - county and state budgets have been starved for revenue sources.
However the numbers are this:
In the 1975-76 fiscal year (when Prop 13 was passed), Los Angeles County revenues sources were about $3 billion and today they are $18 billion, a 500% increase - yet the population of the County has only grown from 7.2 million to 9.8 million a 35% increase.
In the 1975-76 fiscal year, State of California revenues sources were about $9 billion and today they are $86 billion, an 855% increase - yet the population of the State has only grown from 22 million to about 35.8 million, a 62% increase.
Once again, it's not a Revenue problem.