<prompt> Translate the following text to EnglishKwa mfano, kwa ajili ya uwiano wa miaka, Jones-Lee 1989 inatoa kiwango cha wastani cha wastani wa wastani wa wastani wa wastani wa wastani wa wastani wa wastani wa wastani wa wastani wa wastani wa wastani wa wastani.  <response>: To show the maximum impact of the age adjustment, the Alternative Estimate is based on the Jones-Lee 1989 adjustment factor of 0.63, which yields a VSL of 2. 