# Values for Papers_by-year.txt 
#  BIN (year) Refereed Chandra Science Papers (Num. of Papers)
         2000         61              61
         2001        222             222
         2002        356             356
         2003        482             482
         2004        487             487
         2005        509             509
         2006        551             551
         2007        490             490
         2008        535             535
         2009        327             327