2024

Italy Tennis

2023

Canada Tennis

2022

Switzerland Tennis

2020-2021

Russia Tennis

2019

France Tennis

2018

Czech Republic Tennis

2017

United States Tennis

2016

Czech Republic Tennis

2015

Czech Republic Tennis

2014

Czech Republic Tennis

2013

Italy Tennis

2012

Czech Republic Tennis

2011

Czech Republic Tennis

2010

Italy Tennis

2009

Italy Tennis

2008

Russia Tennis

2007

Russia Tennis

2006

Italy Tennis

2004

Russia Tennis

2003

France Tennis

2001

1999

United States Tennis

1998

1997

France Tennis

1995

1994

1993

1991

1989

1986

1982

1981

1980

1979

1978

1977