What is the language spoken in Latvia? Is the English penetration rate high? What is the most common language?

Latvia is located in the eastern part of the Baltic Sea in northern Europe, connected to Estonia, close to Finland, and connected to Russia to the east. The official language is Latvian, which belongs to the Baltic language family and is close to Lithuanian. From 1710 to 1918, it was occupied by Russia and Germany, so the locals also use Russian and German. With the popularity of English in modern times, the popularity rate of English has now reached 80%.