Auslan /ˈɒz læn/ is the sign language of the Australian Deaf community. The term Auslan is a portmanteau of 'Australian Sign Language', coined by Trevor Johnston in the early 1980s, although the language itself is much older. Auslan is related to British Sign Language (BSL) and New Zealand Sign Language (NZSL); the three have descended from the same parent language, and together comprise the BANZSL language family. Auslan has also been influenced by Irish Sign Language (ISL) and more recently has borrowed signs from American Sign Language (ASL). As with other sign languages, Auslan's grammar and vocabulary is quite different from English. Its development cannot be attributed to any individual; rather, it is a natural language that developed organically over time. The number of people for whom Auslan is their primary or preferred language is difficult to determine. According to the 2001, 2006 and 2011 Censuses published by the Australian Bureau of Statistics, the population of Auslan users in Australia has increased by 54.57% over the same time period thus debunking the speculation that Auslan is an endangered language. As of 2011, the Census population of Auslan users in Australia is 9723 - an increase of 4417 new users from the 2001 Census. Based on this statistical trajectory, it is expected that the number of people for whom Auslan is their primary or preferred language could exceed 12000 in the 2016 Census. Although the number is increasing, approximately 5% of all Auslan users are acquiring the language from their parents with the rest learning the language from other peers such as friends or colleagues later in life. Auslan was recognised by the Australian government as a 'community language other than English' and the preferred language of the Deaf community in policy statements in 1987 and 1991. However, this recognition has yet to filter through to many institutions, government departments and professionals who work with Deaf people. The emerging status of Auslan has gone hand-in-hand with the advancement of the Deaf community in Australia, beginning in the early 1980s. In 1982, the registration of the first sign language interpreters by NAATI, a newly established regulatory body for interpreting and translating, accorded a sense of legitimacy to Auslan, furthered by the publishing of the first dictionary of Auslan in 1989. Auslan began to emerge as a language of instruction for Deaf students in secondary schools in the 1990s — mainly through the provision of interpreters in mainstream (hearing) schools with deaf support units. Boosted by the 1992 enactment of the federal Disability Discrimination Act, sign language interpreters are also increasingly provided in tertiary education. Today there is a growing number of courses teaching Auslan as a second language, from an elective language subject offered by some secondary schools to a two-year full-time diploma at TAFE. Though becoming more and more visible, Auslan is still rarely seen at public events or on television; there are, for example, no interpreted news services. There is a regular program on community television station Channel 31 in Melbourne, 'Deaf TV', which is entirely in Auslan and is produced by Deaf volunteers. In 2006 David Gibson was the first member of any Parliament in Australia to give a maiden speech in Auslan and was involved in Auslan events for the National Week of Deaf People at the Queensland Parliament, including the use of Auslan interpreters for question time and a debate between members of the deaf community and members of parliament on disability issues in 2007.