Size of a 20/20 letter on the eye chart. Using this strategy a letter on a vision chart is made to measure the smallest space the subject can distinguish. For a 20/20 letter there are three bars and two spaces making the total letter height 5 min with 1 min between the lines.
The amount of the pension depends on the veteran's income and can be as much as $930 per month for a single veteran or $1,220 for a couple, but it's usually much less.
The average pension for a colonel retiring at the same time, after the same 20 years of service, was $21,7. 56. Colonels tend to serve longer in the I military than sergeants; colonels retiring in Fy 1983 averaged 28 years of service as opposed to 22 years for sergeant first class retirees.