# Prints the content of the counter along with statistics
	#
	# Content is printed in order (if available) from lowest to highest on the keys.
	# Else, it is printed as-is
	fun print_content do
		var a = keys.to_a
		if a isa Array[Comparable] then default_comparator.sort(a)
		var subtotal = 0
		for i in a do
			subtotal += self[i]
			printn("* ", i or else "null", " = ", self[i], " => occurences ", self[i].to_f / sum.to_f * 100.0, "%, cumulative ", subtotal.to_f / sum.to_f * 100.0, "% \n")
		end
	end