import matplotlib.pyplot as plt

# Sample data: (x, y)
x = [2000,2001,2002,2003,2004]
y = [3200,2200,4700,1800,4600]

# Create a figure and axes objects explicitly
fig, ax = plt.subplots()

# Plot data using the ax.plot() method
ax.plot(x, y, marker='o')

# Add labels and title
ax.set_xlabel("Year")
ax.set_ylabel("Earning")
ax.set_title("Yearly Earnings (OO version using figure and subplots.)")

# Display the plot
plt.show()