Speaking about the blood issue "how many people had to die, since this "new light doctrine" came out?"
Well they are still dieing because many JW's don't understand what factions they can take.
Marvin Shilmer has a blog that has an article about one serious medical condition and a study of non witnesses and witnesses and their survival rates (witnesses had a confirmed mortality rate of 18% to 20% higher) which for this ten year period would have caused some 50,000 needless deaths world wide. Considering the state of medicine back in 1945 when the blood issue became part of the doctrine and considering the importance of blood for trauma, cancer , open heart surgery and other surgeries as well as the medical status of third world countries I do not see a death count much lower then 250,000 to 500,000 over the past 68 years and counting.