Years of summits Mount Everest?

* 1953: Sir Edmund Hillary and Tenzing Norgay (New Zealand/Nepal)

* 1956: Ernst Reiss and Fritz Luchsinger (Switzerland)

* 1960: Wang Fuzhou, Qu Yinhua, Liu Lianman, and Xu Jing (China)

* 1963: Norman G. Dyhrenfurth and James W. Whittaker (United States)

* 1965: Tom Hornbein and Willi Unsoeld (United States)

* 1970: Ichiro Miura (Japan)

* 1974: Junko Tabei (Japan)

* 1975: Phurba Tashi (Nepal)

* 1976: Reinhold Messner (Italy)

* 1978: Jerzy Kukuczka (Poland)

* 1980: Reinhold Messner and Peter Habeler (Italy/Austria)

* 1982: Hilaree O'Neill and Jim Wickwire (United States)

* 1983: Reinhold Messner (Italy)

* 1984: Andrzej Czok and Jerzy Kukuczka (Poland)

* 1985: Carlos Carsolio (Mexico)

* 1986: Jerzy Kukuczka (Poland)

* 1987: Reinhold Messner (Italy)

* 1988: Erhard Loretan (Switzerland)

* 1989: Jeff Lowe and Mark Synnott (United States)

* 1990: Rob Hall and Scott Fischer (New Zealand/United States)

* 1991: Yasuko Namba (Japan)

* 1992: Rob Hall, Michael Groom, Andy Harris, Tim Madsen, Frank Fischbeck, Scott Fischer, Lene Gammelgaard, Rob Harris, Helen Wilton, Stuart Hutchison, Lou Kasischke, Pete Athens, Beck Weathers, Sandy Pittman, and Jon Krakauer (New Zealand/United States/Denmark/Great Britain/South Africa)

* 1993: Ed Viesturs (United States)

* 1994: Anatoli Boukreev, Jon Krakauer, Andy Harris, Beck Weathers, Lene Gammelgaard, Mike Groom, Scott Fischer, Ngawang Norbu, Sergey Arsenyev, Rob Hall, Charlotte Fox, Doug Hansen, Dale Kruse, Marty Hoey, and Peter Athans (Russia/United States/New Zealand/Denmark/Great Britain/South Africa/Nepal/China)

* 1995: Anatoli Boukreev, Ed Viesturs, Francys Arsentiev, Ian Woodall, Lou Kasischke, Steve Fossett, John Taske, Stuart Hutchison, Lene Gammelgaard, Dale Kruse, Marty Hoey, and Sandy Hill Pittman (Russia/United States/Canada/Great Britain/South Africa/China)

* 1996: Rob Hall, Anatoli Boukreev, Doug Hansen, Dale Kruse, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Beck Weathers, Lene Gammelgaard, Jon Krakauer, Marty Hoey, Stuart Hutchison, Ngawang Norbu, and Sergey Arsenyev (New Zealand/Russia/United States/Denmark/Great Britain/South Africa/Nepal/China)

* 1997: Ed Viesturs, Anatoli Boukreev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (United States/Russia/Canada/Great Britain/South Africa/Nepal/China)

* 1998: Francys Arsentiev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (Canada/Great Britain/South Africa/Nepal/China)

* 1999: Ed Viesturs, Anatoli Boukreev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (United States/Russia/Canada/Great Britain/South Africa/Nepal/China)

* 2000: Francys Arsentiev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (Canada/Great Britain/South Africa/Nepal/China)

* 2001: Ed Viesturs, Anatoli Boukreev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (United States/Russia/Canada/Great Britain/South Africa/Nepal/China)

* 2002: Francys Arsentiev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (Canada/Great Britain/South Africa/Nepal/China)

* 2003: Ed Viesturs, Anatoli Boukreev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (United States/Russia/Canada/Great Britain/South Africa/Nepal/China)

* 2004: Francys Arsentiev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (Canada/Great Britain/South Africa/Nepal/China)

* 2005: Ed Viesturs, Anatoli Boukreev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (United States/Russia/Canada/Great Britain/South Africa/Nepal/China)

* 2006: Francys Arsentiev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (Canada/Great Britain/South Africa/Nepal/China)

* 2007: Ed Viesturs, Anatoli Boukreev, Ian Woodall, Lou Kasischke, Dale Kruse, Marty Hoey, Sandy Hill Pittman, Charlotte Fox, Andy Harris, Jon Krakauer, Ngawang Norbu, Sergey Arsenyev, and Lhakpa Gelu (United States/Russia/Canada