# Values for Citations_by-year.txt 
#  BIN (year) Citations to Refereed Chandra Science Papers (Num. of Papers)
         2000       8269              55
         2001      20543             198
         2002      28378             330
         2003      32317             431
         2004      26848             400
         2005      28836             447
         2006      41372             549
         2007      33199             499
         2008      29726             519
         2009      27585             432
         2010      26271             421
         2011      24391             441
         2012      26801             453
         2013      24346             425
         2014      21414             405
         2015      21947             429
         2016      20555             440
         2017      27613             472
         2018      17101             459
         2019      12239             421
         2020       9613             394
         2021       7777             378
         2022       5687             367
         2023       3606             443
         2024       2818             501
         2025       2964             475
         2026         73              24
        TOTAL     532289           10808