Post-Process Data into a DataFrame
Step 5: Post-Process Data into a DataFrame
data_iso = []
for item in Pop_data:
    population_results = item['population']['results'][0]['population_data']['Pyramids']
    
    pop_df = pd.DataFrame(population_results)
    pop_df['site_name'] = item['site_name']
    
    data_iso.append(pop_df)
data_iso = pd.concat(data_iso, ignore_index=True)
print(data_iso.head())  # Display the first few rows