Question: What diacritical mark was added to Te Atatu in 2008?

full_context: Document 1: Te Atatū (New Zealand electorate): Te Atatū (before 2008 styled Te Atatu, without macron) is a parliamentary electorate, returning one Member of Parliament to the New Zealand House of Representatives. The current MP for Te Atatū is Phil Twyford of the Labour Party.
Document 2: Baritone: A baritone is a type of classical male singing voice whose vocal range lies between the bass and the tenor voice types. It is the most common male voice. Originally from the Greek βαρύτονος ("barýtonos") , meaning "deep (or heavy) sounding", music for this voice is typically written in the range from the second F below middle C to the F above middle C (i.e. F–F) in choral music, and from the second A below middle C to the A above middle C (A to A) in operatic music, but can be extended at either end. The baritone voice type is generally divided into the baryton-Martin baritone (light baritone), lyric baritone, "Kavalierbariton", Verdi baritone, dramatic baritone, "baryton-noble" baritone, and the bass-baritone.
Document 3: Shva: Shva or, in Biblical Hebrew, shĕwa (Hebrew: שְׁוָא‎ ) is a Hebrew niqqud vowel sign written as two vertical dots (ְ  ) beneath a letter. In Modern Hebrew, it indicates either the phoneme /e/ or the complete absence of a vowel (Ø), whereas in Hebrew prescriptive linguistics, six grammatical entities are differentiated: the resting "Shva" ("naḥ" / ), such as in the words and ; the mobile "Shva" ("naʿ" / ), such as the "Shva" which appears at the beginning of words, which renders the vowel a mobile vowel, as in the Hebrew word "floating" ("meraḥef" / ), or as in ("lefanai") or ("shemaʿ") ; or whenever a diacritical vertical line known as a "Ga'ya" / (lit. "bleating" or "bellowing") appears next to a "Shva". For example, in the words , the "Shva" beneath the Hebrew character "mim" becomes a mobile "Shva" because of the "Ga'ya" (small vertical line) beneath the Hebrew character "he". In all these cases the "Shva" gives an audible sound to the letter, as in a short "a" or short "e", and is not mute. Likewise, whenever a "Shva" appears in the middle of a word and the letter has a diacritical point within it ("dagesh"), as in the "pe" of , or in the "qoph" of , they too will become a mobile "Shva" ("na" / ), as will a word that has two "Shva"s written one after the other, as in the word , or in the word , etc. the first "Shva" is resting (mute), while the second "Shva" is a mobile "Shva". Another instance of where the "Shva" becomes mobile is when it comes directly after a long vowel sound, such as the long vowel of either "yod" or "ḥiríq", as in , giving it the sound of "yeḥīdhkha", etc., or as in the long vowel of "waw" or "ḥolam", as in the words , and , etc. ("hōlkhīm", "yōdʻīm" and "mōkhrīm"), or as in the verse , ""shōfəṭīm wa-shōṭərīm titen ləkha.""
Document 4: Diacritic: A diacritic – also diacritical mark, diacritical point, or diacritical sign – is a glyph added to a letter, or basic glyph. The term derives from the Ancient Greek ("diakritikós", "distinguishing"), from διακρίνω ("diakrī́nō", "to distinguish"). "Diacritic" is primarily an adjective, though sometimes used as a noun, whereas "diacritical" is only ever an adjective. Some diacritical marks, such as the acute ( ´ ) and grave ( ` ), are often called "accents". Diacritical marks may appear above or below a letter, or in some other position such as within the letter or between two letters.
Document 5: Te Atatu South: Te Atatu South is a residential suburb in Auckland, New Zealand. Te Atatu in Maori means "the dawn".
Document 6: Service mark symbol: The service mark symbol (℠), the letters "SM" in superscript style) is a symbol used in the United States to provide notice that the preceding mark is a service mark. This symbol has some legal force, and is typically used for service marks not yet registered with the U.S. Patent and Trademark Office; registered service marks are instead marked with the same symbol used for registered trademarks, the registered trademark symbol ®. The proper manner to display the symbol is immediately following the mark in superscript style.
Document 7: Chris Carter (politician): Christopher Joseph Carter (born 4 May 1952) is a former independent Member of Parliament in New Zealand, and a former member of the New Zealand Labour Party until his expulsion. Carter was a senior Cabinet Minister in the Fifth Labour Government of New Zealand, serving lastly as Minister of Education, Minister Responsible for the Education Review Office and Minister of Ethnic Affairs. He was the Member of Parliament for the Te Atatu electorate, where he was first elected in 1993. He did not win re-election (to Waipareira) in 1996, but won a new and expanded Te Atatu seat in 1999. In 2010 he was suspended from the Labour Party caucus following a dispute with party leader Phil Goff, shortly afterwards he became an independent MP. He was expelled by the Labour Party for breaching the Party's constitution in bringing the Party in disrepute, on 11 October 2010. In September 2011 Carter resigned from Parliament following his appointment to a United Nations position in Afghanistan.
Document 8: Te Atatu Peninsula: Te Atatu Peninsula, is an Auckland suburb formerly known as "Te Atatu North". The 'peninsula' part was proposed by resident Emi Groot, in the early 1980s to replace 'north' and this was formally adopted in 1997. Te Atatu is Maori for "the dawn".
Document 9: Macron (diacritic): A macron ( ) is a diacritical mark: it is a straight bar (¯) placed above a letter, usually a vowel. Its name derives , since it was originally used to mark long or heavy syllables in Greco-Roman metrics. It now more often marks a long vowel. In the International Phonetic Alphabet, the macron is used to indicate a mid-tone; the sign for a long vowel is instead a modified triangular colon ⟨⟩ .
Document 10: Glottal stop (letter): The sign ⟨ʔ⟩ is called "glottal stop" and it is a letter in some extended Latin alphabets of several languages of Canada. It is not part of the basic Latin alphabet or Classical Latin alphabet. Several phonetic transcription schemes, such as the International Phonetic Alphabet (IPA), use versions of glottal stop.
Document 11: Te Atatu: Te Atatu (Maori for "the dawn") is the name of two suburbs in western Auckland, New Zealand: "Te Atatu Peninsula" and "Te Atatu South". They are located next to each other some 10 kilometres to the west of the Auckland city centre.
Document 12: Michael Coutts-Trotter: Michael Coutts-Trotter, an Australian public servant and is married to Tanya Plibersek MP, an Australian Labor Party politician and the federal Deputy Leader of the Opposition.
Document 13: Harare East: Harare East is a constituency of the House of Assembly of Zimbabwe, located in Harare. It has been represented since 2000 by Tendai Biti, the Secretary-General of the Movement for Democratic Change, and he retained this constituency in the March 2008 election.
Document 14: Te Atatu AFC: Te Atatu AFC is a semi-professional association football club in Te Atatu, New Zealand. They are the currently competing in the US1 Premiership.
Document 15: Æ: Æ (minuscule: æ) is a grapheme named æsc or ash, formed from the letters "a" and "e", originally a ligature representing the Latin diphthong "ae". It has been promoted to the full status of a letter in the alphabets of some languages, including Danish, Norwegian, Icelandic, and Faroese. As a letter of the Old English Latin alphabet, it was called "æsc" ("ash tree") after the Anglo-Saxon futhorc rune ᚫ () which it transliterated; its traditional name in English is still ash . It was also used in Old Swedish before being changed to ä. Variants include Ǣ ǣ Ǽ ǽ æ̀.
ground_truth: macron