overcrowding are contributing to emigration to New Zealand and Samoa. In the 2013 New Zealand census, more than 7,000 people identified as Tokelauan, almost five times as many as live in Tokelau itself. Depletion of tuna has made fishing for food more difficult. A significant proportion (44.9% in 2016) of the population were born overseas, mostly in Samoa (15.3% of total population) and New Zealand (11.5%). While slightly more females than males live on Atafu and Fakaofo, males make up 57% of Nukunonu residents. Only 9% of Tokelauans aged 40 or more have never been married. One-quarter of the population were born overseas; almost all the rest live on the same atoll they were born on. Most households own five or more pigs. Despite its low income, Tokelau has a life expectancy of 69 years, comparable with other Oceania islands. Religion Tokelau is predominantly Christian. On the island of Atafu almost all inhabitants are members of the Congregational Christian Church of Samoa (corresponding to 62% of the total population). On Nukunonu almost all are Roman Catholic (corresponding to 34% of the total population). On Fakaofo both denominations are present with the Congregational Christian Church predominant. 5% of the population follow other religions. Culture Healthcare and education Each atoll has a school and hospital. The health services have a Director of Health in Apia and a Chief Clinical Advisor who moves from atoll to atoll as required to assist the doctors attached to each hospital. In 2007 there was not always a doctor on each island and locums were appointed to fill the gaps. Many Tokelauan youth travel to New Zealand to further their education and Tokelau is most populated around the Christmas season, with students returning home and then heading off for another year of study. Sport Due to its small size, Tokelau is unaffiliated to most international sports organisations, and rarely takes part in international events. The only significant international competition Tokelau takes part in is the Pacific Games. Tokelau won its first-ever gold medals at the 2007 Pacific Games in Apia, winning a total of five medals (three gold, a silver and a bronze), all in lawn bowls, and finishing 12th (out of 22) on the overall medal table. This included two gold medals for Violina Linda Pedro (in the women's pairs and the women's singles), making her Tokelau's most successful individual athlete to date. In October 2010,