[2021] - Gdp E439 Top

# Assuming a dataset with columns: country, gdp_usd, group_id def get_gdp_e439_top(df, top_n=10): filtered = df[df['group_id'] == 'e439'] sorted_df = filtered.sort_values(by='gdp_usd', ascending=False) return sorted_df.head(top_n)[['country', 'gdp_usd']]

Focus on processing tailings and by-products to recover gold, providing environmental solutions to mining companies. gdp e439 top