Ireland has a population of 4.2 million people, which is the highest since 1871. 10% of the population are immigrants while there are over 80 million people of Irish descent living abroad, mainly in the United States, United Kingdom, Canada, and Australia. While English is one of the official languages, 1.66 million people in Ireland claim to speak Irish (Gaelic) as well. Traditional Irish culture includes instruments like the uilleann pipes and bodhrán drum, with traditional musicians often playing by ear rather than written sheet music. Popular sports in Ireland include Gaelic football, played mainly at Croke Park stadium.