Most Frequently Challenged Authors of the 21st Century

I'll admit that being born in Derry, Northern Ireland and being raised in Manchester, England from age three to adulthood, has led me to not know that many authors on this list. I think that many of these authors are American, aren't they?  

2001: J. K. Rowling, Robert Cormier, John Steinbeck, Judy Blume, Maya Angelou, Robie Harris, Gary Paulsen, Walter Dean Myers, Phyllis Reynolds Naylor, and Bette Greene.

2002: J.K. Rowling, Judy Blume, Robert Cormier, Phyllis Reynolds Naylor, Stephen King, Lois Duncan, S.E. Hinton, Alvin Schwartz, Maya Angelou, Roald Dahl, and Toni Morrison.

2003: Phyllis Reynolds Naylor, J. K. Rowling, Robert Cormier, Judy Blume, Katherine Paterson, John Steinbeck, Walter Dean Myers, Robie Harris, Stephen King, and Louise Rennison.

2004: Phyllis Reynolds Naylor, Robert Cormier, Judy Blume, Toni Morrison, Chris Lynch, Barbara Park, Gary Paulsen, Dav Pilkey, Maurice Sendak, and Sonya Sones.

2005: Judy Blume, Robert Cormier, Chris Crutcher, Robie Harris, Phyllis Reynolds Naylor, Toni Morrison, J. D. Salinger, Lois Lowry, Marilyn Reynolds, and Sonya Sones.  

2006: Chris Crutcher, Justin Richardson and Peter Parnell, Toni Morrison, Phyllis Reynolds Naylor, Cecily von Ziegesar, Carolyn Mackler, Alvin Schwartz, Stephen Chbosky, Alex Sanchez, Judy Blume.

2007: Robert Cormier, Peter Parnell and Justin Richardson, Mark Twain, Toni Morrison, Philip Pullman, Kevin Henkes, Lois Lowry, Chris Crutcher, Lauren Myracle, Joann Sfar.

2008: Peter Parnell and Justin Richardson, Philip Pullman, Lauren Myracle, Jim Pipe, Alvin Schwartz, Chris Crutcher, Phyllis Reynolds Naylor, Rudolfo Anaya, Stephen Chbosky, Cecily Von Ziegesar.

2009: Lauren Myracle, Alex Sanchez, P.C. Cast, Robert Cormier, Peter Parnell and Justin Richardson, Stephen Chbosky, Chris Crutcher, Ellen Hopkins, Richelle Mead, John Steinbeck.

2010: Ellen Hopkins, Peter Parnell and Justin Richardson, Sonya Sones, Judy Blume, Ann Brasheres, Suzanne Collins, Aldous Huxley, Sherman Alexie, Laurie Halse Anderson, Natasha Friend.  

2011: Lauren Myracle, Kim Dong Hwa, Chris Crutcher, Carolyn Mackler, Robert Greene, Sonya Sones, Dori Hillestead Butler, Sherman Alexie, Suzanne Collins, Aldous Huxley, Harper Lee, Eric Jerome Dickey, Phyllis Reynolds Naylor, Dav Pilkey, Cecily von Ziegesar.

2012: Dav Pilkey, Sherman Alexie, Jay Asher, E.L. James, Ellen Hopkins, Jimmy Santiago Baca, Patricia Polacco, John Green, Luis Alberto Urrea, Alvin Schwartz, Dagberto Glib.

Till we Meet Again, Glow Brightly as Moonlight