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 |
| --- | --- | --- | --- | --- | --- |
| 1991.0 | Alan Budi Kusuma | Huang Hua | Li Yongbo Tian Bingyi | Chung Myung-hee Hwang Hye-young | Liu Jianjun Wang Xiaoyuan |
| 1992.0 | Hermawan Susanto | Yao Yan | Ricky Subagja Rexy Mainaky | Yao Fen Lin Yanfen | Aryono Miranat Eliza Nathanael |
| 1993.0 | Joko Suprianto | Han Jingna | Rudy Gunawan Bambang Suprianto | Wu Yuhong Chen Ying | Chen Xingdong Sun Man |
| 1995.0 | Dong Jiong | Ye Zhaoying | Huang Zhanzhong Jiang Xin | Ge Fei Gu Jun | Peng Xinyong Chen Xingdong |
| 1997.0 | Dong Jiong | Gong Zhichao | Ge Cheng Tao Xiaoqiang | Ge Fei Gu Jun | Kim Dong-moon Ra Kyung-min |
| 1999.0 | Dong Jiong | Zhou Mi | Ha Tae-kwon Kim Dong-moon | Ge Fei Gu Jun | Liu Yong Ge Fei |
| 2001.0 | Xia Xuanze | Zhou Mi | Zhang Wei Zhang Jun | Zhang Jiewen Wei Yili | Liu Yong Chen Lin |
| 2002.0 | Wong Choong Hann | Gong Ruina | Pramote Teerawiwatana Tesana Panvisvas | Gao Ling Huang Sui | Zhang Jun Gao Ling |
| 2003.0 | Lin Dan | Zhou Mi | Lars Paaske Jonas Rasmussen | Gao Ling Huang Sui | Zhang Jun Gao Ling |
| 2004.0 | Lin Dan | Xie Xingfang | Candra Wijaya Sigit Budiarto | Yang Wei Zhang Jiewen | Jens Eriksen Mette Schjoldager |
| 2005.0 | Chen Hong | Zhang Ning | Candra Wijaya Sigit Budiarto | Yang Wei Zhang Jiewen | Nathan Robertson Gail Emms |
| 2006.0 | Chen Hong | Zhang Ning | Markis Kido Hendra Setiawan | Yang Wei Zhang Jiewen | Xie Zhongbo Zhang Yawen |
| 2007.0 | Bao Chunlai | Wong Mew Choo | Markis Kido Hendra Setiawan | Gao Ling Zhao Tingting | Nova Widianto Lilyana Natsir |
| 2008.0 | Lin Dan | Jiang Yanjiao | Jung Jae-sung Lee Yong-dae | Zhang Yawen Zhao Tingting | Lee Yong-dae Lee Hyo-jung |
| 2009.0 | Lin Dan | Jiang Yanjiao | Jung Jae-sung Lee Yong-dae | Tian Qing Zhang Yawen | Lee Yong-dae Lee Hyo-jung |
| 2010.0 | Chen Long | Jiang Yanjiao | Jung Jae-sung Lee Yong-dae | Cheng Shu Zhao Yunlei | Tao Jiaming Tian Qing |
| 2011.0 | Lin Dan | Wang Yihan | Mathias Boe Carsten Mogensen | Wang Xiaoli Yu Yang | Zhang Nan Zhao Yunlei |
| 2012.0 | Chen Long | Li Xuerui | Mathias Boe Carsten Mogensen | Wang Xiaoli Yu Yang | Xu Chen Ma Jin |
Question:
Who won the mens singles in 2009?
Answer:
Lin Dan