Give me a bulleted list of the last eight female Olympians to win the 200m freestyle.
Here is a list of last eight females to win the 200m freestyle race at the Olympics. 
 - Ariarne Titmus (2020 Tokyo)
 - Katie Ledecky (2016 Rio de Janeiro)
 - Allison Schmitt (2012 London) 
 - Federica Pellegrini (2008 Beijing)
 - Camelia Potec (2004 Athens)
 - Susie O'Neill (2000 Sydney)
 - Claudia Poll (1996 Atlanta)
 - Nicole Haislett (1992 Barcelona)