Don't mean to be pedantic, but numbers are what I "do" for a living....
The average amount of Jehovah's Witnesses in the 2007 Yearbook was 6,491,775. In the 2000 Yearbook, the average number of Jehovah's Witnesses was 5,653,987. That means the average total amount of JW's grew by 837,788. More math you say? Ok.
2,158,465 baptized this period - the actual average growth of 837,788 = 1,320,677 actual people who somehow aren't with the group anymore.
Over 1.3 million people who are no longer active JW's in this decade so far!
1.3 million people "disappeared" over 8 years, and we assume
60,000 per year die.
60,000 per year over 8 years (2000 - 2007) = 480,000 JW deaths. That leaves around 800,000 unexplained "disappearances" over 8 years, about 100,000 per year, comprised of DFs and faders.
100,000 JWs are leaving the organization by some means other than death (DF, fade) each year, compared to ~260,000 baptized per year. So for every 5 people coming in the front door, roughly 2 leave out the back door.
All of this assumes, of course, that the numbers published are accurate.