Those stats were from a book, and are on at least 2 websites I know of. Cannot find the original website, but I think it was selling the book, the stats are the same but more explanation.
128,168,000 VICTIMS: THE DEKA-MEGAMURDERERS
4. 61,911,000 Murdered: The Soviet Gulag State
5. 35,236,000 Murdered: The Communist Chinese Ant Hill
6. 20,946,000 Murdered: The Nazi Genocide State
7. 10,214,000 Murdered: The Depraved Nationalist Regime
III 19,178,000 VICTIMS: THE LESSER MEGA-MURDERERS
8. 5,964,000 Murdered: Japan's Savage Military
9. 2,035,000 Murdered: The Khmer Rouge Hell State
10. 1,883,000 Murdered: Turkey's Genocidal Purges
11. 1,670,000 Murdered: The Vietnamese War State
12. 1,585,000 Murdered: Poland's Ethnic Cleansing
13. 1,503,000 Murdered: The Pakistani Cutthroat State
14. 1,072,000 Murdered: Tito's Slaughterhouse
heres the link
http://www.hawaii.edu/powerkills/NOTE1.HTM
Oh No!! I have started it.....
*1hr later....I came across this site, takes some reading but it is of interest*
http://users.erols.com/mwhite28/warstatx.htm