It is estimated that there are approximately 2 million trappers in the USA alone, and for 50,000 of these it is a major source of income. Trapping is an important activity in northern countries such as Canada, Scandinavia and the USSR. The number of animals killed for the fur trade is estimated to be in excess of 50 million per year, but of these 50% are raised in captivity, the remainder being trapped. Another estimate gives 20 million animals trapped annually in North America using the leghold trap.
In 1988, patrols in the Parc National des Volcans, Rwanda, reported removing more than 2,000 illegal traps.