Line graph that shows the family status of the citizens of Kiel, Germany

familyStatus.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-

"""
Line graph of the familiy status of the citizens of Kiel, Germany.
The data is provided by the City of Kiel.
http://kiel.de/rathaus/statistik/open_data/index.php

familyStatus.py
version: 1.3
author: Bodo Schönfeld
last edited: 10/12/2016
"""

import csv
import matplotlib.pyplot as plt

# see https://tonysyu.github.io/raw_content/matplotlib-style-gallery/gallery.html
# for more styles
plt.style.use('bmh')

with open('kiel_gesetze_justiz_gemeldete_straftaten.csv') as csvfile:
    readCSV = csv.reader(csvfile, delimiter=';')
    
    # create empty lists
    jahr = []
    ledig = []
    verheiratet = []
    
    for row in readCSV:
        jahr.append(int(row[4]))
        ledig.append(float(row[5]))
        verheiratet.append(float(row[6]))

plt.title("Kiel - Familienstand\n1988-2014 (für 1993 liegt kein Wert vor)")
plt.xlabel("Jahr")
plt.ylabel("in Tsd.")

plt.plot(jahr, ledig, "r*-", markersize=6, linewidth=1, color='g', label="ledig")
plt.plot(jahr, verheiratet, "r*-", markersize=6, linewidth=1, color='r', label="verheiratet")

plt.legend(loc=(0.25, 0.75))

# plt.savefig('kiel_familienstatus.png')
plt.show()