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 | Mens singles | Womens singles | Mens doubles | Womens doubles | Mixed doubles |
| --- | --- | --- | --- | --- | --- |
| 1974.0 | Hermann Fröhlich | Monika Cassens | Gregor Berden Stane Koprivsek | Monika Cassens Christine Zierath | Joachim Schimpke Monika Cassens |
| 1976.0 | Erfried Michalowsky | Monika Cassens | Erfried Michalowsky Roland Riese | Monika Cassens Angela Michalowski | Edgar Michalowski Monika Cassens |
| 1978.0 | Rolf Heyer | Monika Cassens | Rolf Heyer Olaf Rosenow | Monika Cassens Angela Michalowski | Edgar Michalowski Monika Cassens |
| 1979.0 | Nick Yates | Paula Kilvington | Nick Yates Duncan Bridge | Monika Cassens Angela Michalowski | Herman Leidelmeijer Hanke de Kort |
| 1980.0 | Michal Malý | Helen Troke | Dipak Tailor Duncan Bridge | Monika Cassens Ilona Michalowsky | Edgar Michalowski Monika Cassens |
| 1981.0 | Dipak Tailor | Gillian Gowers | Dipak Tailor Chris Dobson | Catharina Troke Gillian Gowers | Dipak Tailor Gillian Gowers |
| 1982.0 | Michal Malý | Monika Cassens | Joe Ford Glen Milton | Jill Pringle Fiona Elliot | Edgar Michalowski Monika Cassens |
| 1983.0 | Johan Ratheyser | Heidemarie Krickhaus | Edgar Michalowski Erfried Michalowsky | Monika Cassens Petra Michalowsky | Erfried Michalowsky Petra Michalowsky |
| 1984.0 | Thomas Künstler | Monika Cassens | Peter Skole Ch. Norberg | Erica van Dijck Monique Hoogland | Bas von Barnau-Sijthoff Erica van Dijck |
| 1985.0 | Peter Skole | Elena Rybkina | Klaus Fischer Heinz Fischer | Elena Rybkina Ludmila Galyamova | Nikolay Kalinskij Elena Rybkina |
| 1986.0 | Klaus Fischer | Svetlana Belyasova | Klaus Fischer Heinz Fischer | Svetlana Belyasova Vlada Belyutina | Vitaliy Shmakov Svetlana Belyasova |
| 1987.0 | Klaus Fischer | Bozena Siemieniec | Jerzy Dolhan Grzegorz Olchowik | Bozena Haracz Bozena Siemieniec | Jerzy Dolhan Bozena Haracz |
| 1988.0 | Andrey Antropov | Bozena Siemieniec | Andrey Antropov Sergey Melnikov | Monika Cassens Petra Michalowsky | Jerzy Dolhan Marzena Masiuk |
| 1989.0 | Andrey Antropov | Suk Chun-sung | Shung Han-kook Hwan Shen-jin | Suk Chun-sung Lee Jung-mi | Han Kook-sung Chung Meong-hee |
| 1990.0 | Ahn Joe-chang | Kang Bok-seung | Lee Sang-bok Hwang Shon-jin | Hwang Young-hye Jung Soon-sooh | Lee Sang-bok Hwang Hye-young |
| 1991.0 | Yoo Young-sung | Park Joo-yun | Young Gil Lee Dong-soo | Soo Yun Shin Young | Young Gil Soo Yun |
| 1992.0 | Peter Bush | Alison Humby | Björn Siegmund Kai Mitteldorf | Tanya Groves Joanne Davies | Heinz Fischer Irina Serova |
| 1993.0 | Hans Sperre | Yoo Eun-young | Kai Mitteldorf Uwe Ossenbrink | Kim Kyung-ran Chung Jae-hee | Valerij Strelcov Elena Nozdran |
| 1994.0 | T. Lundgaard Hansen | Anne Sondergaard | Damian Plaweczki Robert Mateusiak | Sara Hardaker Rebeca Pantaney | Ian Pearson Sara Hardaker |
| 1995.0 | Anders Boesen | Michelle Rasmussen | Julian Robertson Nathan Robertson | Tanya Groves Alison Humby | Jürgen Koch Irina Serova |
| 1996.0 | Peter Janum | Tracey Hallam | Jonas Rasmussen Jan Ø. Jørgensen | Johanna Holgersson Astrid Grabo | Jonas Rasmussen Ann-Lou Jorgensen |
| 1997.0 | Chris Bruil | Elena Nozdran | Michail Popov Svetoslav Stoyanov | Lotte Jonathans Ginny Severien | Norbert van Barneveld Lotte Jonanthans |
| 1998.0 | Ruud Kuijten | Christina Sorensen | Michał Łogosz Robert Mateusiak | Rikke Broen Sara Runesten | Martin Bruim Sara Runesten |
| 1999.0 | Hwang Sun-ho | Kim Ji-hyun | Kim Yong-hyun Yim Bang-eun | Lee Hyo-jung Yim Kyung-jin | Kim Yong-hyun Yim Kyung-jin |
| 2000.0 | Przemysław Wacha | Maja Pohar | Valiyaveetil Diju Thomas Sanave | Mercedes Cuenca Yoana Martínez | José Antonio Crespo Dolores Marco |
| 2001.0 | Jonas Lyduch | Petya Nedelcheva | Johan Holm Joakim Andersson | Elin Bergblom Joana Persson | Andrej Pohar Maja Pohar |
| 2002.0 | Stanislav Pukhov | Elena Sukhareva | Stanislav Pukhov Nikolai Zuyev | Marina Yakusheva Elena Schimko | Sergei Ivlev Natalia Gorodnicheva |
| 2003.0 | Jang Soo-young | Susan Hughes | Hwang Ji-man Lee Jae-jin | Kamila Augustyn Nadiezda Kostiuczyk | Nikolai Zuyev Marina Yakusheva |
| 2004.0 | Bobby Milroy | Petya Nedelcheva | Nikolai Zuyev Sergei Ivlev | Lim Pek Siah Chor Hooi Yee | Ong Ewe Hock Lim Pek Siah |
| 2005.0 | Anup Sridhar | Atu Rosalina | Jürgen Koch Peter Zauner | Anastasia Russkikh Ekaterina Ananina | Vladimir Malkov Anastasia Russkikh |
| 2006.0 | George Rimarcdi | Chie Umezu | Imanuel Hirschfeld Imam Sodikin | Ekaterina Ananina Anastasia Russkikh | Vladimir Malkov Anastasia Russkikh |
| 2007.0 | Jan O Jorgensen | Ragna Ingolfsdottir | Mads Pieler Kolding Peter Mork | Line Damkjaer Kruse Camilla Sørensen | Zhang Yi Cai Jiani |
| 2008.0 | Anand Pawar | Petya Nedelcheva | Kasper Henriksen Christian Skovgaard | Anastasia Prokopenko Olga Golovanova | Vitaly Durkin Nina Vislova |
| 2009.0 | Dieter Domke | Jeanine Cicognini | Adam Cwalina Wojciech Szkudlarczyk | Tatjana Bibik Olga Golovanova | Wojciech Szkudlarczyk Agnieszka Wojtkowska |
| 2010.0 | Ville Lang | Karin Schnaase | Peter Kaesbauer Josche Zurwonne | Johanna Goliszewski Carla Nelte | Jacco Arends Selena Piek |
| 2011.0 | Rasmus Fladberg | Stefani Stoeva | Zvonimir Durkinjak Zvonimir Hoelbling | Natalia Pocztowiak Stasa Poznanovic | Viki Indra Okvana Gustiani Megawati |
Question:
Who won the mens doubles the year Alison Humby won the womens singles?
Answer:
Björn Siegmund Kai Mitteldorf