The annual salaries of elected officers of a class A county shall not exceed, for:
A. county commissioners, thirty-nine thousand one hundred six dollars ($39,106) each;
B. treasurer, eighty-six thousand six hundred twenty-six dollars ($86,626);
C. assessor, eighty-six thousand six hundred twenty-six dollars ($86,626);
D. sheriff, ninety thousand three hundred thirty-eight dollars ($90,338);
E. county clerk, eighty-six thousand six hundred twenty-six dollars ($86,626); and
F. probate judge, thirty-eight thousand one hundred fourteen dollars ($38,114).