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def kesson_table(df):
    null_val = df.isnull().sum()
    percent = 100 * df.isnull().sum() / len(df)
    kesson_table = pd.concat([null_val, percent], axis = 1)
    kesson_table_ren_columns = kesson_table.rename(
        columns = {0 : '欠損数', 1 : '%'})
    return kesson_table_ren_columns

kesson_table(test)