Time Period         Pro-government forces         Anti-government forces         Civilians         Grand Total (inc.unidentified)
2011
2012
2013         52,290 killed[25]
(2013: 30,239)[26]         29,083 killed[25]
(2013: 18,812)[26]         46,266 killed[27]
(2013: 22,436)[28]         2011: 7,841 killed[29]
2012: 49,294 killed[29]
2013: 73,447 killed[29]
2014         25,160 killed         32,726 killed         17,790 killed         76,021 killed[30]
2015         17,686 killed         24,010 killed         13,249 killed         55,219 killed[31]
January 2016         1,599 killed         1,687 killed         1,345 killed         4,680 killed[32]
February 2016         1,442 killed         2,209 killed         1,109 killed         4,802 killed[33]
March 2016         827 killed         1,232 killed         588 killed         2,658 killed[34]
April 2016         990 killed         1,263 killed         859 killed         3,116 killed[35]
May 2016         1,318 killed         2,669 killed         917 killed         4,927 killed[36]
June 2016         1,435 killed         2,139 killed         1,208 killed         4,823 killed[37]
July 2016         1,291 killed         1,882 killed         1,590 killed         4,794 killed[38]
August 2016         1,311 killed         1,845 killed         1,289 killed         4,475 killed[39]
September 2016         987 killed         1,302 killed         1,228 killed         3,686 killed[40]
October 2016         970 killed         1,720 killed         1,343 killed         4,527 killed[41]
November 2016         1,006 killed         1,656 killed         1,279 killed         3,954 killed[42]
Cumulative 2016 13,176 killed         19,604 killed         12,755 killed         46,442 killed

https://en.wikipedia.org/wiki/Casualties_of_the_Syrian_Civil_War