Abstract GRP-093 Table 1
Date
Median%
May 2007
60%
July-Dec 2007
56%
Jan-Jun 2008
67%
Jul-Dec 2008
73%
Jan-Jun 2009
77%
Jul-Dec 2009
77%
Jan-Jun 2010
85%
Jul-Dec 2010
92%
Jan-Jun 2011
96%
Jul-Dec 2011
95%
Jan-Jun 2012
95%
Sep 2012
98%