import matplotlib.pyplot as plt
year = [1950, 1970, 1990, 2010]
pop = [2.519, 3.692, 5.263, 6.972]

# Line
#plt.plot(year, pop)

# Scatter
plt.scatter(year, pop)

# Put the x-axis on a logarithmic scale
#plt.xscale('log')

# Show plot
plt.show()
