Sample of groupdate question Causing formatting changes Comment out require 'groupdate' to see different in terminal output

gistfile1.rb

require 'date'
require 'groupdate'


class DateManipulate

	def initialize
		@creationDateCount = [{"_id"=>{"year"=>2012, "month"=>10}, "number"=>53}, {"_id"=>{"year"=>2012, "month"=>12}, "number"=>58}, {"_id"=>{"year"=>2011, "month"=>8}, "number"=>8}, {"_id"=>{"year"=>2012, "month"=>11}, "number"=>75}, {"_id"=>{"year"=>2011, "month"=>9}, "number"=>58}, {"_id"=>{"year"=>2013, "month"=>9}, "number"=>67}, {"_id"=>{"year"=>2013, "month"=>6}, "number"=>561}, {"_id"=>{"year"=>2012, "month"=>9}, "number"=>102}, {"_id"=>{"year"=>2013, "month"=>5}, "number"=>609}, {"_id"=>{"year"=>2012, "month"=>7}, "number"=>84}, {"_id"=>{"year"=>2010, "month"=>12}, "number"=>1}, {"_id"=>{"year"=>2013, "month"=>7}, "number"=>595}, {"_id"=>{"year"=>2013, "month"=>3}, "number"=>253}, {"_id"=>{"year"=>2012, "month"=>6}, "number"=>129}, {"_id"=>{"year"=>2012, "month"=>2}, "number"=>95}, {"_id"=>{"year"=>2012, "month"=>4}, "number"=>50}, {"_id"=>{"year"=>2013, "month"=>8}, "number"=>736}, {"_id"=>{"year"=>2013, "month"=>1}, "number"=>242}, {"_id"=>{"year"=>2011, "month"=>11}, "number"=>46}, {"_id"=>{"year"=>2012, "month"=>3}, "number"=>68}, {"_id"=>{"year"=>2011, "month"=>10}, "number"=>48}, {"_id"=>{"year"=>2012, "month"=>1}, "number"=>70}, {"_id"=>{"year"=>2012, "month"=>8}, "number"=>70}, {"_id"=>{"year"=>2013, "month"=>2}, "number"=>266}, {"_id"=>{"year"=>2011, "month"=>12}, "number"=>47}, {"_id"=>{"year"=>2013, "month"=>4}, "number"=>449}, {"_id"=>{"year"=>2012, "month"=>5}, "number"=>77}]
		puts self.sortHash

	end

	def sortHash ()
		dateFormatChangeHash = {}
		@creationDateCount.each do |x|
			temp = Date.strptime(x["_id"].values_at('month', 'year').join(" "), '%m %Y')
			dateFormatChangeHash[temp] = x["number"]	

		end

		sortedDates = dateFormatChangeHash.keys.sort
		#puts sortedDates

		sortedHash = {}
		sortedDates.each do |y|

			sortedHash[y] = dateFormatChangeHash[y]

		end
		return sortedHash

	end
end



start = DateManipulate.new