date_format(min(dat), '%M %Y')	dxcc
September 2007	USA
February 2008	E. Kiribati
October 2009	Midway I.
January 2010	Japan
March 2010	Switzerland
April 2010	Greece
April 2010	Philippines
April 2010	Puerto Rico
April 2010	Cuba
April 2010	Slovenia
May 2010	Argentina
August 2010	Paraguay
September 2010	Mexico
September 2010	Canada
September 2010	Germany
September 2010	Italy
November 2010	Kermadec Is.
December 2010	S. Cook Is.
December 2010	Venezuela
December 2010	Hawaii
January 2011	Portugal
April 2011	Liberia
April 2011	Lithuania
April 2011	Czech Rep.
April 2011	Belgium
April 2011	Bulgaria
April 2011	Ukraine
April 2011	Moldova
November 2011	St. Helena