如何将行标题添加到以下matplotlib代码中？

import matplotlib.pyplot as plt
import numpy as np

x = np.arange(5)
y = np.random.randint(1, 10, size=(5, 5))

fig, ax = plt.subplots()

ax.bar(x, y.mean(axis=1))

row_labels = ['Row 1', 'Row 2', 'Row 3', 'Row 4', 'Row 5']
ax.set_xticklabels(row_labels)

ax.set_xlabel('X Label')
ax.set_ylabel('Y Label')
ax.set_title('Title')

plt.show()