Need help displaying text underneath bar on an tkinter embedded matpotlib bar graph

[2inshix]

I was successful on embedding a matpotlib bar graph onto tkinter, however I can seem to find a way to disply text underneat each bar. The desired result would be text displaying the content of each bar underneath, for example
bar 1, bar 2, bar 3, bar 4, bar 5, any help would be greatly apperciated.

Happy holidays to all the programming community!

#!/usr/bin/env python
import matplotlib
matplotlib.use('TkAgg')
import numpy as np
import matplotlib.pyplot as plt
from numpy import arange, sin, pi
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2TkAgg
from matplotlib.figure import Figure
from Tkinter import Tk, Frame, Menu
import sys
if sys.version_info[0] < 3:
    import Tkinter as Tk
else:
    import tkinter as Tk
    
def sabina():
    print "Sabina"
    
def saoPaulo():
    print "Sao Paulo"

def NSMX():
    print "NSMX"
def knob():
    print "KNOB"
def pointer():
    print "POINTER"
def ambient():
    print "AMBIENT"
    
class Example(Frame):
  
    def __init__(self, parent):
        Frame.__init__(self, parent)   
         
        self.parent = parent
        
        self.initUI()
        
    def initUI(self):
      
        self.parent.title("Submenu")
        
        menubar = Menu(self.parent)
        self.parent.config(menu=menubar)
        
        customers = Menu(menubar)       
        customers.add_command(label='Sabina', underline=0, command=sabina)
        customers.add_command(label='Sao Paulo', underline=0, command=saoPaulo)
        customers.add_command(label='NSMX', underline=0, command=NSMX)
        customers.add('separator')        
        customers.add_command(label="Exit", underline=0, command=self.onExit)



        menuProducts = Menu(menubar)       
        menuProducts.add_command(label='Knob', underline=0, command=knob)
        menuProducts.add_command(label='Pointer', underline=0, command=pointer)
        menuProducts.add_command(label='Ambient', underline=0, command=ambient)
        menuProducts.add('separator')        
        menuProducts.add_command(label="Exit", underline=0, command=self.onExit)      

        menuMaq = Menu(menubar)       
        menuMaq.add_command(label='Sabina', underline=0, command=sabina)
        menuMaq.add_command(label='Sao Paulo', underline=0, command=saoPaulo)
        menuMaq.add_command(label='NSMX', underline=0, command=NSMX)
        menuMaq.add('separator')        
        menuMaq.add_command(label="Exit", underline=0, command=self.onExit)

        menubar.add_cascade(label="Customers", underline=0, menu=customers)        
        menubar.add_cascade(label="Products", underline=0, menu=menuProducts)                  

    def onExit(self):
        self.quit()


def destroy(e): sys.exit()

root = Tk.Tk()
root.wm_title("Produccion Status")
#root.bind("<Destroy>", destroy)
prodName='Model name'
pO=19000
po=[19000,19000,19000,19000,19000]
N = ['Cap', 'bush', 'pointer', 'omori', 'KanseiHin']
existencias   = [10000, 2000, 1100, 3500,3000]
retrasos = [int(pO-existencias[0]),int(pO-existencias[1]),\
            int(pO-existencias[2]),int(pO-existencias[3]),int(pO-existencias[4])]#[5000, 8200, 9400, 2000]
ind = np.arange(len(N))    # the x locations for the groups
width = .80      # the width of the bars: can also be len(x) sequence

f = Figure(figsize=(3,3), dpi=150)#window size
a = f.add_subplot(111)#layout
#t = arange(00,10,001)#xticks
#s = sin(2*pi*t)
a.bar(ind, po,   width, color='r')
a.bar(ind, existencias,   width, color='y')
#a.bar(ind, retrasos,   width, color='r')
a.set_title(prodName)
#ylabel('Cantidades')
#title('Nombre del Modelo')
a.set_xticks(ind+width/2., ('Cap', 'bush', 'pointer', 'omori', 'KanseiHin') )
a.set_yticks(np.arange(0,20000,1000))
a.set_xlabel('buhin')
a.set_ylabel('Cantidades')


# a tk.DrawingArea
canvas = FigureCanvasTkAgg(f, master=root)
canvas.show()
#canvas.get_tk_widget().pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)

#toolbar = NavigationToolbar2TkAgg( canvas, root )
#toolbar.update()
canvas._tkcanvas.pack(side=Tk.TOP, fill=Tk.BOTH, expand=1)

button = Tk.Button(master=root, text='Quit', command=sys.exit)
button.pack(side=Tk.BOTTOM)
app = Example(root)
app1 = Example(root)
Tk.mainloop()