Some of the bureaucratic barriers that currently exist to travel between countries are issues related to:
security and
geopolitical conflicts.
Some measures to minimize or abolish these bureaucratic barriers could be:
the implementation of analysis and planning of the tourism sector,
establishment of development policies and measures that make the country safer and more stable in order to encourage tourism.
The tourism sector is essential for certain countries to increase their source of income, it is therefore necessary to establish positive publicity for tourist destinations in the countries, facilitating visa approval and reducing bureaucracy to encourage tourists to get to know the country.
To calculate the anomalies, from each monthly data point you subtract that month’s average. These monthly averages, called the “climatology”, are shown in the top row of Figure 2.