Good news for the aerospace industry because the number of passengers passing through TSA checkpoints this year is the same as in 2019 (before COVID-19).

import pandas as pd
import numpy as np
import math
import matplotlib.pyplot as plt
from plotnine import ggplot, geom_point, aes, stat_smooth, facet_wrap,geom_smooth,labs, scale_x_continuous,geom_line
from plotnine import *

import matplotlib
print(matplotlib.__version__)
df=pd.read_csv("data_tsa2.txt", delimiter=r"\s+")

a2019=(
    ggplot(df) +
    geom_line(aes(x = 'Date', y = 'c2019',colour ='"blue"'),size=0.1) +
    geom_point(aes(x = 'Date', y = 'c2019',color='"blue"'),size=0.2) +
    geom_smooth(aes(x = 'Date', y = 'c2019',color='"blue"'),span=.3,size=1.0) +
    
    geom_line(aes(x = 'Date', y = 'c2020',colour = '"black"'),size=0.1) +    
    geom_point(aes(x = 'Date', y = 'c2020',color='"black"'),size=0.2) +
    geom_smooth(aes(x = 'Date', y = 'c2020',color='"black"'),span=.1,size=1.0) +

    geom_line(aes(x = 'Date', y = 'c2021',colour = '"green"'),size=0.1) +    
    geom_point(aes(x = 'Date', y = 'c2021',color='"green"'),size=0.2) +
    geom_smooth(aes(x = 'Date', y = 'c2021',color='"green"'),span=.3,size=1.0) +
    
    geom_line(aes(x = 'Date', y = 'c2022',colour = '"orange"'),size=0.1) +    
    geom_point(aes(x = 'Date', y = 'c2022',color='"orange"'),size=0.2) +
    geom_smooth(aes(x = 'Date', y = 'c2022',color='"orange"'),span=.3,size=1.0) +

    geom_line(aes(x = 'Date', y = 'c2023',colour = '"red"'),size=0.1) +    
    geom_point(aes(x = 'Date', y = 'c2023',color='"red"'),size=0.2) +
    geom_smooth(aes(x = 'Date', y = 'c2023',color='"red"'),span=.3,size=1.0) +
    scale_x_continuous(breaks=range(0,365,14)) +
    theme(text=element_text(family="Tahoma", size=10)) +
    scale_colour_manual(name = "Years", values = ["blue","black",
                                                  "green","orange","red"],
                      labels = ['2019','2020','2021','2022','2023']) +
    labs(title='Number of passengers at USA Airport TSA checkpoints',
           x='Day #',
           y='Number of Passengers')
    )

p1=print(a2019)
plt.savefig('ex372.png', dpi=300)
plt.show()