分析年收入五分位分组与违约率

def solve():
    from pyodide.http import open_url
    from io import StringIO
    loans_raw_csv = open_url(____).read()
    import pandas as pd
    from io import StringIO
    df = pd.read_csv(StringIO(____))
    df['____'] = pd.qcut(____)
    grp = df.groupby(____).agg(count=(____),default_rate=(____)).reset_index()
    grp['____'] = grp['____'].round(____)
    print(grp.to_string(____))