# Values for Citations_by-year.txt 
#  BIN (year) Citations to Refereed Chandra Science Papers (Num. of Papers)
         2000       8229              55
         2001      20447             198
         2002      28229             330
         2003      32163             431
         2004      26694             400
         2005      28644             447
         2006      41005             549
         2007      32954             499
         2008      29485             519
         2009      27316             432
         2010      25999             421
         2011      24139             441
         2012      26427             453
         2013      24007             425
         2014      21062             405
         2015      21542             429
         2016      20145             440
         2017      26937             472
         2018      16621             459
         2019      11824             421
         2020       9233             390
         2021       7471             378
         2022       5493             367
         2023       3606             441
         2024       2624             501
         2025       1996             395
        TOTAL     524292           10698