Badminton stats

Olympics winners

Men
1972 Munchen: Rudy Hartono (Indonesia)*
1988 Seoul: Yang Yang (China)*
1992 Barcelona: Allan Budi Kusuma (Indonesia)
1996 Atlanta: Poul-Erik Høyer-Larsen (Denmark)
2000 Sidney: Ji Xinpeng (China)
2004 Athens: Taufik Hidayat (Indonesia)
2008 Beijing: Lin Dan (China)
2012 London: Lin Dan (China)

Women
1972 Munchen: Noriko Nakayama (Japan)*
1988 Seoul: Han Aiping (China)*
1992 Barcelona: Susi Susanti (Indonesia)
1996 Atlanta: Bang Soo-Hyun (Korea)
2000 Sidney: Gong Zhichao (China)
2004 Athens: Zhang Ning (China)
2008 Beijing: Zhang Ning (China)
2012 London: Li Xueriu (China)

Men Doubles
1972 Munchen: Ade Chandra / Christian Hadinata (Indonesia)*
1988 Seoul: Li Yongbo / Tian Bingyi (China)*
1992 Barcelona: Park Joo-Bong / Kim Moon-Soo (Korea)
1996 Atlanta: Ricky Subagja / Rexy Mainaky (Indonesia)
2000 Sidney: Tony Gunawan / Candra Wijaya (Indonesia)
2004 Athens: Kim Dong-Moon / Ha Tae-Kwon (Korea)
2008 Beijing: Markis Kido / Hendra Setiawan (Indonesia)
2012 London: Cai Yu / Fu Haifeng (China)

Women doubles
1972 Munchen: n/a
1988 Seoul: Kim Yun-Ja / Chung Soo-Young (Korea)*
1992 Barcelona: Hwang Hye-Young / Chung Soo-Young (Korea)
1996 Atlanta: Ge Fei / Gu Jun (China)
2000 Sidney: Ge Fei / Gu Jun (China)
2004 Athens: Yang Wei / Zhnag Jiewen (China)
2008 Beijing: Du Jing / Yu Yang (China)
2012 London: Tian Quing / Zhao Yunlei (China)

Mixed doubles
1972 Munchen: Derek Talbot / Gillian Gilks (England)*
1988 Seoul: Park Joo-Bong / Chung Myung-Hee (Korea)*
1992 Barcelona: n/a
1996 Atlanta: Kim Dong-Moon / Gil Young-Ah (Korea)
2000 Sidney: Zhang Jun / Gao Ling (China)
2004 Athens: Zhang Jun / Gao Ling (China)
2008 Beijing: Lee Yong-Dae / Lee Hyo-Jung (Korea)
2012 London: Zhang Nan / Zhao Yunlei (China)

*Badminton was a demonstration event in the 1972 and 1988 Summer Olympics. It became an official Summer Olympic sport at the Barcelona Olympics in 1992 and its gold medals now generally rate as the sport’s most coveted prizes for individual players. From wikipedia