Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Men's singles | Women's singles | Men's doubles | Women's doubles | Mixed doubles |
| --- | --- | --- | --- | --- | --- |
| 1954 | Eddy B. Choong | Judy Devlin | Ooi Teik Hock Ong Poh Lim | Judy Devlin Susan Devlin | Joseph Cameron Alston Lois Alston |
| 1955 | Joseph C. Alston | Margaret Varner | Joe Alston T. Wynn Rogers | Judy Devlin Susan Devlin | Wynn Rogers Dorothy Hann |
| 1956 | Finn Kobberø | Judy Devlin | Finn Kobberø Jørgen Hammergaard Hansen | Ethel Marshall Beatrice Massman | Finn Kobberø Judy Devlin |
| 1957 | Finn Kobberø | Judy Devlin | Finn Kobberø Jørgen Hammergaard Hansen | Judy Devlin Susan Devlin | Finn Kobberø Judy Devlin |
| 1958 | James Richard Poole | Judy Devlin | Finn Kobberø Jørgen Hammergaard Hansen | Judy Devlin Susan Devlin | Finn Kobberø Jørgen Hammergaard Hansen |
| 1959 | Tan Joe Hok | Judy Devlin | Teh Kew San Lim Say Hup | Judy Devlin Susan Devlin | Michael Roche Judy Devlin |
| 1960 | Tan Joe Hok | Judy Devlin | Finn Kobberø Charoen Wattanasin | Judy Devlin Susan Devlin | Finn Kobberø Margaret Varner |
| 1961 | James Richard Poole | Judy Devlin | Joe Alston Wynn Rogers | Judy Devlin Hashman Susan Devlin Peard | Wynn Rogers Judy Devlin Hashman |
| 1962 | Ferry Sonneville | Judy Devlin | Joe Alston Wynn Rogers | Judy Hashman Patsy Stephens | Wynn Rogers Judy Hashman |
| 1963 | Erland Kops | Judy Devlin | Erland Kops Bob McCoig | Judy Hashman Susan Peard | Sangob Rattanusorn Margaret Barrand |
| 1964 | Channarong Ratanaseangsuang | Dorothy O'Neil | Joe Alston Wynn Rogers | Tyna Barinaga Caroline Jensen | Channarong Ratanaseangsuang Margaret Barrand |
| 1965 | Erland Kops | Judy Devlin | Bob McCoig Tony Jordan | Margaret Barrand Jennifer Pritchard | Bob McCoig Margaret Barrand |
| 1966 | Tan Aik Huang | Judy Devlin | Ng Boon Bee Tan Yee Khan | Judy Hashman Susan Peard | Wayne MacDonnell Tyna Barinaga |
| 1967 | Erland Kops | Judy Devlin | Erland Kops Joe Alston | Judy Hashman Rosine Jones Lemon | Jim Sydie Judy Hashman |
| 1968 | Channarong Ratanaseangsuang | Tyna Barinaga | Jim Poole Don Paup | Tyna Barinaga Helen Tibbetts | Larry Saben Carlene Starkey |
| 1969 | Rudy Hartono | Minarni | Ng Boon Bee Punch Gunalan | Minarni Retno Kustijah | Erland Kops Pernille Molgaard Hansen |
| 1970 | Junji Honma | Etsuko Takenaka | Junji Honma Ippei Kojima | Etsuko Takenaka Machiko Aizawa | Paul Whetnall Margaret Boxall |
| 1971 | Muljadi | Noriko Takagi | Ng Boon Bee Punch Gunalan | Noriko Takagi Hiroe Yuki | Jim Poole Maryanne Breckell |
| 1972 | Sture Johnsson | Eva Twedberg | Derek Talbot Elliot Stuart | Anne Berglund Pernille Kaagaard | Flemming Delfs Pernille Kaagaard |
| 1973 | Sture Johnsson | Eva Twedberg | Jim Poole Don Paup | Pam Brady Diane Hales | Sture Johnsson Eva Twedberg |
| 1974 1975 | no competition | no competition | no competition | no competition | no competition |
| 1976 | Paul Whetnall | Gillian Gilks | Willi Braun Roland Maywald | Gillian Gilks Susan Whetnall | David Eddy Susan Whetnall |
| 1977 1982 | no competition | no competition | no competition | no competition | no competition |
| 1983 | Mike Butler | Sherrie Liu | John Britton Gary Higgins | Claire Backhouse Johanne Falardeau | Mike Butler Claire Backhouse |
| 1984 | Xiong Guobao | Luo Yun | Chen Hongyong Zhang Qingwu | Yin Haichen Lu Yanahua | Wang Pengren Luo Yun |
| 1985 | Mike Butler | Claire Backhouse Sharpe | John Britton Gary Higgins | Claire Sharpe Sandra Skillings | Mike Butler Claire Sharpe |
| 1986 | Sung Han-kuk | Denyse Julien | Yao Ximing Tariq Wadood | Denyse Julien Johanne Falardeau | Mike Butler Johanne Falardeau |
| 1987 | Park Sun-bae | Chun Suk-sun | Lee Deuk-choon Lee Sang-bok | Kim Ho Ja Chung So-young | Lee Deuk-choon Chung So-young |
| 1988 | Sze Yu | Lee Myeong-hee | Christian Hadinata Lius Pongoh | Kim Ho Ja Chung So-young | Christian Hadinata Ivana Lie |
| 1989 | no competition | no competition | no competition | no competition | no competition |
| 1990 | Fung Permadi | Denyse Julien | Ger Shin-Ming Yang Shih-Jeng | Denyse Julien Doris Piché | Tariq Wadood Traci Britton |
| 1991 | Steve Butler | Shim Eun-jung | Jalani Sidek Razif Sidek | Shim Eun-jung Kang Bok-seung | Lee Sang-bok Shim Eun-jung |
| 1992 | Poul-Erik Hoyer-Larsen | Lim Xiaoqing | Cheah Soon Kit Soo Beng Kiang | Lim Xiaoqing Christine Magnusson | Thomas Lund Pernille Dupont |
| 1993 | Marleve Mainaky | Lim Xiaoqing | Thomas Lund Jon Holst-Christensen | Gil Young-ah Chung So-young | Thomas Lund Catrine Bengtsson |
| 1994 | Thomas Stuer-Lauridsen | Liu Guimei | Ade Sutrisna Candra Wijaya | Rikke Olsen Helene Kirkegaard | Jens Eriksen Rikke Olsen |
| 1995 | Hermawan Susanto | Ye Zhaoying | Rudy Gunawan Joko Suprianto | Gil Young-ah Jang Hye-ock | Kim Dong-moon Gil Young-ah |
| 1996 | Joko Suprianto | Mia Audina | Candra Wijaya Sigit Budiarto | Zelin Resiana Eliza Nathanael | Kim Dong-moon Chung So-young |
| 1997 | Poul-Erik Hoyer-Larsen | Camilla Martin | Ha Tae-kwon Kim Dong-moon | Qin Yiyuan Tang Yongshu | Kim Dong Moon Ra Kyung-min |
| 1998 | Fung Permadi | Tang Yeping | Horng Shin-Jeng Lee Wei-Jen | Elinor Middlemiss Kirsteen McEwan | Kenny Middlemiss Elinor Middlemiss |
| 1999 | Colin Haughton | Pi Hongyan | Michael Lamp Jonas Rasmussen | Huang Nanyan Lu Ying | Jonas Rasmussen Jane F. Bramsen |
| 2000 | Ardy Wiranata | Choi Ma-re | Graham Hurrell James Anderson | Gail Emms Joanne Wright | Jonas Rasmussen Jane F. Bramsen |
| 2001 | Lee Hyun-il | Ra Kyung-min | Kang Kyung-jin Park Young-duk | Kim Kyeung-ran Ra Kyung-min | Mathias Boe Majken Vange |
| 2002 | Peter Gade | Julia Mann | Tony Gunawan Khan Malaythong | Joanne Wright Natalie Munt | Tony Gunawan Etty Tantri |
| 2003 | Chien Yu-hsiu | Kelly Morgan | Tony Gunawan Khan Malaythong | Yoshiko Iwata Miyuki Tai | Tony Gunawan Eti Gunawan |
| 2004 | Kendrick Lee Yen Hui | Xing Aiying | Howard Bach Tony Gunawan | Cheng Wen-hsing Chien Yu-chin | Lin Wei-hsiang Cheng Wen-hsing |
| 2005 | Hsieh Yu-hsing | Lili Zhou | Howard Bach Tony Gunawan | Peng Yun Johanna Lee | Khan Malaythong Mesinee Mangkalakiri |
| 2006 | Yousuke Nakanishi | Ella Karachkova | Halim Haryanto Tony Gunawan | Nina Vislova Valeria Sorokina | Sergey Ivlev Nina Vislova |
| 2007 | Lee Tsuen Seng | Jun Jae-youn | Tadashi Ohtsuka Keita Masuda | Miyuki Maeda Satoko Suetsuna | Keita Masuda Miyuki Maeda |
| 2008 | Andrew Dabeka | Lili Zhou | Howard Bach Khan Malaythong | Chang Li-Ying Hung Shih-Chieh | Halim Haryanto Peng Yun |
| 2009 | Taufik Hidayat | Anna Rice | Howard Bach Tony Gunawan | Ruilin Huang Xuelian Jiang | Howard Bach Eva Lee |
| 2010 | Rajiv Ouseph | Zhu Lin | Fang Chieh-min Lee Sheng-mu | Cheng Wen-hsing Chien Yu-chin | Michael Fuchs Birgit Overzier |
| 2011 | Sho Sasaki | Tai Tzu-ying | Ko Sung-hyun Lee Yong-dae | Ha Jung-eun Kim Min-jung | Lee Yong-dae Ha Jung-eun |
| 2012 | Vladimir Ivanov | Pai Hsiao-ma | Hiroyuki Endo Kenichi Hayakawa | Misaki Matsutomo Ayaka Takahashi | Tony Gunawan Vita Marissa |
| 2013 | Nguyen Tien Minh | Sapsiree Taerattanachai | Takeshi Kamura Keigo Sonoda | Bao Yixin Zhong Qianxin | Lee Chun Hei Chau Hoi Wah |
Question:
Who was the women's singles champion in 1984?
Answer:
Luo Yun