Lew II
G.O.A.T.
1999 - 7 (#1 Kafelnikov, Moya, Rafter, #2 Corretja, #4 Krajicek, Martin, Enqvist)
2000 - 5 (#1 Safin, Kuerten, #2 Norman, #4 Kiefer, #5 Pioline)
2001 - 1 (#1 Hewitt)
2002 - 4 (#2 Haas, #4 Grosjean, Henman, #5 Novak)
2003 - 2 (#1 Ferrero, Roddick)
2004 - 3 (#1 Federer, #3 Coria, #5 Schuettler)
2005 - 1 (#5 Gaudio)
2006 - 5 (#3 Davydenko, Ljubicic, Nalbandian, #4 Blake, #5 Robredo)
2007 - 1 (#5 Gonzalez)
2008 - 1 (#1 Nadal)
2009 - 0
2010 - 1 (#4 Soderling)
2011 - 1 (#1 Djokovic)
2012 - 1 (#5 Tsonga)
2013 - 1 (#3 Ferrer)
2014 - 1 (#3 Wawrinka)
2015 - 2 (#4 Berdych, Nishikori)
2016 - 2 (#1 Murray, #3 Raonic)
2017 - 3 (#3 Dimitrov, Zverev, #4 Thiem)
2018 - 3 (#3 Cilic, Del Potro, #5 Anderson)
2019 - 2 (#4 Medvedev, #5 Tsitsipas)
1999-2006 new top5 per year --> 3.5
2007-2014 new top5 per year --> 0.9
2015-2019 new top5 per year --> 2.4
From 2007 to 2014 it was much harder to reach a high ranking
2000 - 5 (#1 Safin, Kuerten, #2 Norman, #4 Kiefer, #5 Pioline)
2001 - 1 (#1 Hewitt)
2002 - 4 (#2 Haas, #4 Grosjean, Henman, #5 Novak)
2003 - 2 (#1 Ferrero, Roddick)
2004 - 3 (#1 Federer, #3 Coria, #5 Schuettler)
2005 - 1 (#5 Gaudio)
2006 - 5 (#3 Davydenko, Ljubicic, Nalbandian, #4 Blake, #5 Robredo)
2007 - 1 (#5 Gonzalez)
2008 - 1 (#1 Nadal)
2009 - 0
2010 - 1 (#4 Soderling)
2011 - 1 (#1 Djokovic)
2012 - 1 (#5 Tsonga)
2013 - 1 (#3 Ferrer)
2014 - 1 (#3 Wawrinka)
2015 - 2 (#4 Berdych, Nishikori)
2016 - 2 (#1 Murray, #3 Raonic)
2017 - 3 (#3 Dimitrov, Zverev, #4 Thiem)
2018 - 3 (#3 Cilic, Del Potro, #5 Anderson)
2019 - 2 (#4 Medvedev, #5 Tsitsipas)
1999-2006 new top5 per year --> 3.5
2007-2014 new top5 per year --> 0.9
2015-2019 new top5 per year --> 2.4
From 2007 to 2014 it was much harder to reach a high ranking
