are designed to withstand winds of . By 2011, Tokelau's electricity was 93% generated by photovoltaics, with the remainder generated from coconut oil. As of 2019, increased demand and degradation of batteries had led to increased need for backup power. Plans were made for an additional 210 kW of PV and close to 2MWh of lithium-ion battery capacity. Internet domain name Tokelau has increased its GDP by more than 10% through registrations of domain names under its top-level domain, .tk. Registrations can be either free, in which case the user owns only usage rights and not the domain itself, or paid, which grants full rights. Free domains are pointed to Tokelau name servers, which redirects the domain via HTML frames to a specified address or to a specified A or NS record, and the redirection of up to 250 email addresses to an external address (not at a .tk domain). In September 2003 Fakaofo became the first part of Tokelau with a high-speed Internet connection. Foundation Tokelau financed the project. Tokelau gives most domain names under its authority away to anyone for free to gain publicity for the territory. This has allowed the nation to gain enhanced telecommunications technologies, such as more computers and Internet access for Tokelauan residents. By 2012, there were about 120 computers, mostly laptops, and 1/6th of the economy consists of income from .tk domain names. According to a 2016 analysis of domain name registration performed by the .uk registrar Nominet using data from ZookNIC, tk domains are the "world's largest country-code domain ... almost as large as second and third place holders China (.cn) and Germany (.de) combined". Demographics According to the 2016 Tokelau Census, Tokelau has a de jure usually resident population of 1,499 people. The census shows a 6.2% increase in the de jure usually resident population between 2011 and 2016. The nationals of Tokelau are called Tokelauans, and the major ethnic group is Polynesian; it has no recorded minority groups. About 84% of inhabitants are of wholly or partly Tokelauan ethnicity; people of Samoan ethnicity make up 6.7% of the population, and Tuvaluans 2.8%. The main language—spoken by over 90% of inhabitants—is Tokelauan, but almost 60% also speak English. The less than 1,500 Polynesian inhabitants live in three villages. Their isolation and lack of resources greatly limits economic development and confines agriculture to the subsistence level. The very limited natural resources and