No doorbell wrote:
Or, more likely, she got off the source after 2005, when she was caught for the 2nd time, and that's why she ran 7 minutes slower post-2005.
Very intriguing:
2015 2:36:55 London (GBR) 26 APR 2015
2011 2:23:46 Berlin (GER) 25 SEP 2011
2009 2:29:27 New York, NY (USA) 01 NOV 2009
2008 2:23:56 New York, NY (USA) 02 NOV 2008
2007 2:23:09 New York, NY (USA) 04 NOV 2007
2005 2:17:42 London (GBR) 17 APR 2005
2004 2:23:10 New York, NY (USA) 07 NOV 2004
2003 2:15:25 London (GBR) 13 APR 2003
2002 2:17:18 Chicago, IL (USA) 13 OCT 2002
https://www.iaaf.org/athletes/great-britain-ni/paula-radcliffe-62914