def insertCountry(self, name, code):
      global firstYear
      item = [name, '"'+code+'"']
      num = (2016 - firstYear)
      for i in range(num):
         item.append('')
      temp = DoubleNode(item)
      if (self.head == None):
         self.head = self.tail = temp
      else:
         temp.set_prev(None)
         temp.set_next(self.head)
         self.head.set_prev(temp)
         self.head=temp