instagram_sum = 0
twitter_sum = 0
for row in data:
    emojixpress_sum += row[1]
    instagram_sum += row[2]
    twitter_sum += row[3]

emojixpress_mean = emojixpress_sum / len(data)
instagram_mean = instagram_sum / len(data)
twitter_mean = twitter_sum / len(data)

for i in range(len(data)):
    emojixpress_normalized = data[i][1] / emojixpress_mean
    instagram_normalized = data[i][2] / instagram_mean
    twitter_normalized = data[i][3] / twitter_mean
    index = emojixpress_normalized + instagram_normalized + twitter_normalized
    data[i].append(index)

data.sort(key=lambda row: row[1], reverse=True)

print('Название эмодзи  | Emojixpress, млн')
print('-----------------------------------')
for row in data[:5]:
    print('{: <16} | {: >16.2f}'.format(row[0], row[1]))
print()
print()

data.sort(key=lambda row: row[2], reverse=True)

print('Название эмодзи  | Instagram, млн')
print('---------------------------------')
for row in data[:5]:
    print('{: <16} | {: >14.2f}'.format(row[0], row[2]))
print()
print()

data.sort(key=lambda row: row[3], reverse=True)

print('Название эмодзи  | Твиттер, млн')
print('-------------------------------')
for row in data[:5]:
    print('{: <16} | {: >12.2f}'.format(row[0], row[3]))
print()
print()

data.sort(key=lambda row: row[1], reverse=True)

print('Название эмодзи  | Индекс использования')
print('---------------------------------------')
# обновите этот код
for row in data[:5]:
    print('{: <16} | {: >20.2f}'.format(row[0], row[1]))