Which architectural firm experienced the largest percentage increase in client retention rate following a Pritzker Prize win?

The Pritzker Architecture Prize is often called 'architecture's Nobel Prize' and can significantly impact an architect's brand and client loyalty. This award has transformed architectural practices into global brands with devoted followings. How well do you understand the relationship between prestigious awards and brand loyalty in the architecture industry?

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Zaha Hadid Architects after Zaha Hadid's 2004 win (42% increase)
Gehry Partners after Frank Gehry's 1989 win (37% increase)
Tadao Ando Architect & Associates after Tadao Ando's 1995 win (31% increase)
Herzog & de Meuron after their 2001 win (29% increase)