Good afternoon, I need to do some averages on some data but I only want to use the most recent date and a date thats as close to as a year ago as possible. i.e.
28.05.2012
24.02.2012
10.10.2011
08.07.2012
29.05.2012
26.05.2012
Above is a range of dates using the most recent date and a date up to a year ago(as close as possible) ignoring all the data inbetween.