How to display percentage above the bars in bar graph?

[WhatsupSmiley]

Hi there, I am trying to figure out how to display the percentage values above each bar in my bar graph. I am using matplotlib and I created a dataframe that has the percentage.

Here is my code for the dataframe:

%matplotlib inline
import matplotlib as mpl
import matplotlib.pyplot as plt

#sort the dataframe in descending order of Very Interested, Somewhat Interested, and Not Interested
df_VInt = df_TopSurvey.sort_values(by='Very interested', ascending=False)

#Convert the numbers into percentages of the total number of respondents
perc = (df_VInt /2233) *100 
perc = round (perc, 2)
perc

which shows:

---

Output:
	

                           Very interested	Somewhat interested	Not interested
Data Analysis / Statistics	       75.59	   19.88	               2.69
Machine Learning	               72.95	   21.36	               3.31
Data Visualization	               60.01	   32.87	               4.57
Big Data (Spark / Hadoop)	       59.65	   32.65	               5.69
Deep Learning	                   56.56	   34.48	               6.09
Data Journalism	                   19.21	   48.41	              27.32

Here is the code I have for my bargraph (and what I've tried to get the percentage to show on top of each bar of the graph):

colors = ['#5cb85c','#5bc0de','#d9534f']

perc.plot(kind='bar', figsize=(20,8), width=0.8, color=colors, )
plt.xlabel('Data Science Areas', fontsize=14)
plt.ylabel('Percentage of Respondents', fontsize=14)
plt.title('Percentage of Respondents Interest in Data Science Areas', fontsize=16)

plt.xticks(fontsize=14)
for spine in plt.gca().spines.values():
    spine.set_visible(False)
plt.yticks([])

for p in ax.patches:
    width, height = p.get_width(), p.get_height()
    x,y=p.get_xy()
    ax.annotate('{:.0%}', format(height), (x,y + height + 0.01))
plt.show()

And this is what I get: