How to fill area under line plot in seaborn

Question

I want to fill the area under a line plot so it looks as the picture below:

instead of

built on the following .csv file:

01-01-97    1
01-02-97    2
01-03-97    3
     ...
01-11-17    251
01-12-17    252
01-01-18    253

what should I change in this code to generate the desired graph?

import pandas as pd
import seaborn as sns
from matplotlib import pyplot as plt

# load csv
df=pd.read_csv("test.csv")
# generate graph
g = sns.lineplot(x="Date", y="Data", data=df)

plt.show()

Answer 1

plt.fill_between(df.Date.values, df.Data.values)