Subsection (a) shall only apply in counties having a population, according to the 2000 federal census or any subsequent federal census, of:  not less than  nor more than 
  5,500 5,600 
  11,369 11,450 
  14,300 14,400 
  17,800 17,875 
  27,700 27,800 
  37,200 37,300 
  62,300 62,400