Pros & Cons
3 Pros:
• WW collecting systems are crucial elements
• Geographic distribution is easy to grasp
• Practical relevance of this parameter is very high
3 Cons:
• For large regions, no data are available
• No geographic localisation
• Intra-country distribution would be interesting but invisible
![data](/sites/default/files/styles/large/public/2022-01/image147_0.png?itok=nuneubUx)
![data](/sites/default/files/styles/max_1300x1300/public/2022-01/image148.png?itok=wTQbZiJl)