Of each country may be in error if it does not receive an inspection specification information. If an error occurs, each country bringing its sales data of each comparable yop may be misled.
Retention of each country may crash if not verified the letter if wrong data of each country bringing the countries to change the comparison could be misleading.
The data of each country could crash if not check details. If the data of each country's mistake: using data from each country change. Compared to potential misunderstanding.