# import necessary libraries
import pandas as pd

# define your series
my_series = pd.Series([8, 9, 1, 2, 1, 1, 7, 8, 9, 2,\
                       10, 7, 2, 1, 8, 8, 3, 10, 7, 3])

# use value_counts() method of pandas & sort the index
counts = my_series.value_counts(sort = True)

# print result
print(f"Frequency Counts of Items: \n{counts}")