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Year-by-YearBLK% ActiveBLK% CareerBLK% Single SeasonBLK%
1973-74Clifford Ray3.28       Clifford Ray3.28
1974-75George Johnson7.18       George Johnson7.18
1975-76Elvin Hayes*4.90 Dave Cowens*0.97 Dave Cowens*0.97 George Johnson7.18
1976-77Bill Walton*4.73 Elvin Hayes*3.01 Elvin Hayes*3.01 George Johnson7.18
1977-78Caldwell Jones4.81 Elvin Hayes*3.06 Elvin Hayes*3.06 George Johnson7.18
1978-79Tree Rollins6.00 Kareem Abdul-Jabbar*3.72 Kareem Abdul-Jabbar*3.72 George Johnson7.18
1979-80Kareem Abdul-Jabbar*5.28 Kareem Abdul-Jabbar*4.13 Kareem Abdul-Jabbar*4.13 George Johnson7.18
1980-81George Johnson5.66 Kareem Abdul-Jabbar*4.07 Kareem Abdul-Jabbar*4.07 George Johnson7.18
1981-82Robert Parish*6.40 Kareem Abdul-Jabbar*4.19 Kareem Abdul-Jabbar*4.19 George Johnson7.18
1982-83Kareem Abdul-Jabbar*5.15 Kareem Abdul-Jabbar*4.35 Kareem Abdul-Jabbar*4.35 George Johnson7.18
1983-84Mark Eaton7.43 Kareem Abdul-Jabbar*4.15 Kareem Abdul-Jabbar*4.15 Mark Eaton7.43
1984-85Mark Eaton9.36 Kareem Abdul-Jabbar*4.02 Kareem Abdul-Jabbar*4.02 Mark Eaton9.36
1985-86Manute Bol10.85 Kareem Abdul-Jabbar*3.91 Kareem Abdul-Jabbar*3.91 Manute Bol10.85
1986-87Mark Eaton6.64 Kareem Abdul-Jabbar*3.87 Kareem Abdul-Jabbar*3.87 Manute Bol10.85
1987-88Patrick Ewing*5.61 Hakeem Olajuwon*5.30 Hakeem Olajuwon*5.30 Manute Bol10.85
1988-89Alton Lister8.59 Hakeem Olajuwon*5.20 Hakeem Olajuwon*5.20 Manute Bol10.85
1989-90Hakeem Olajuwon*10.31 Hakeem Olajuwon*5.65 Hakeem Olajuwon*5.65 Manute Bol10.85
1990-91David Robinson*5.98 Mark Eaton5.69 Mark Eaton5.69 Manute Bol10.85
1991-92Benoit Benjamin5.31 Mark Eaton5.59 Mark Eaton5.59 Manute Bol10.85
1992-93Oliver Miller7.31 Hakeem Olajuwon*5.89 Hakeem Olajuwon*5.89 Manute Bol10.85
1993-94Dikembe Mutombo9.26 Hakeem Olajuwon*6.05 Hakeem Olajuwon*6.05 Manute Bol10.85
1994-95Alonzo Mourning*6.06 Hakeem Olajuwon*5.84 Hakeem Olajuwon*5.84 Manute Bol10.85
1995-96Greg Ostertag9.00 Hakeem Olajuwon*5.74 Hakeem Olajuwon*5.74 Manute Bol10.85
1996-97Greg Ostertag8.97 Hakeem Olajuwon*5.63 Hakeem Olajuwon*5.63 Manute Bol10.85
1997-98Greg Ostertag9.03 Hakeem Olajuwon*5.65 Hakeem Olajuwon*5.65 Manute Bol10.85
1998-99Theo Ratliff7.93 Dikembe Mutombo6.41 Dikembe Mutombo6.41 Manute Bol10.85
1999-00Greg Ostertag7.82 Dikembe Mutombo6.41 Dikembe Mutombo6.41 Manute Bol10.85
2000-01Shawn Bradley8.80 Greg Ostertag8.41 Greg Ostertag8.41 Manute Bol10.85
2001-02Tim Duncan7.49 Greg Ostertag8.27 Greg Ostertag8.27 Manute Bol10.85
2002-03Raef LaFrentz6.72 Greg Ostertag7.93 Greg Ostertag7.93 Manute Bol10.85
2003-04Jonathan Bender5.53 Greg Ostertag7.93 Greg Ostertag7.93 Manute Bol10.85
2004-05Alonzo Mourning*9.78 Greg Ostertag7.91 Greg Ostertag7.91 Manute Bol10.85
2005-06Alonzo Mourning*8.89 Greg Ostertag7.91 Greg Ostertag7.91 Manute Bol10.85
2006-07Andrei Kirilenko7.24 Alonzo Mourning*6.44 Greg Ostertag7.91 Manute Bol10.85
2007-08Ronny Turiaf7.30 Alonzo Mourning*6.44 Greg Ostertag7.91 Manute Bol10.85
2008-09Chris Andersen8.39 Dikembe Mutombo6.14 Greg Ostertag7.91 Manute Bol10.85
2009-10Dwight Howard8.10 Dwight Howard5.87 Greg Ostertag7.91 Manute Bol10.85
2010-11Serge Ibaka8.13 Dwight Howard5.59 Greg Ostertag7.91 Manute Bol10.85
2011-12JaVale McGee8.65 Dwight Howard5.59 Greg Ostertag7.91 Manute Bol10.85
2012-13Serge Ibaka7.79 Serge Ibaka8.05 Serge Ibaka8.05 Manute Bol10.85