In many, but most of all, in most Latin American countries.
I'll explain, in times of celebration is when more pyrotechnics is used, but throughout the year, there are many parties that are celebrated or there are usually championships, international and national cups that are celebrated.
Example: When soccer is played, it is usual to receive a soccer team with pyrotechnics or to celebrate if it won with pyrotechnics.
These championships are throughout the year, so the pyrotechnics are always present, only that at parties like Christmas or New Year they are used more.
Also, sometimes they even seem to compete to see who throws more pyrotechnics than the other.
In which countries?
In many, but most of all, in most Latin American countries.
I'll explain, in times of celebration is when more pyrotechnics is used, but throughout the year, there are many parties that are celebrated or there are usually championships, international and national cups that are celebrated.
Example: When soccer is played, it is usual to receive a soccer team with pyrotechnics or to celebrate if it won with pyrotechnics.
These championships are throughout the year, so the pyrotechnics are always present, only that at parties like Christmas or New Year they are used more.
Also, sometimes they even seem to compete to see who throws more pyrotechnics than the other.
I say it for experience.