Список проголосовавших за комментарий "Нагуглил вот такое: <br/> Negative correlation:<br/> — 1989-1997, with the exception of a couple months in 1996 (aver -0.25, low > -0.5)<br/> <br/> Positive correlation:<br/> — All of 1998-2001 (aver +0.2, high > +0.45)<br/> <br/> Negative correlation:<br/> — All of 2002-03 (high > -0.45)<br/> <br/> Positive correlation:<br/> — All of 2004-07 (aver +0.2, high > +0.3)<br/> <br/> Negative correlation:<br/> — July 2007 — September 2008<br/> <br/> Positive correlation:<br/> — September 2008