def create_citywide_level_df_by_year(df, year):
    """create the dataframes by geography type and year, strip year from columns"""
    df_citywide = (
        df.loc[["citywide"]].reset_index().rename(columns={"geo_id": "citywide"})
    )
    df_citywide.set_index("citywide", inplace=True)

    final = df_citywide.filter(regex=f"citywide|{year}")
    final.columns = final.columns.str.replace(f"_{year}", "")

    return final