Correlation: GLD holdings Vs. Total U.S. Gold ETF holdings

I did some research on the GLD gold trust physical holdings versus the Total U.S. gold backed ETF holdings and these are the numbers.

2014 sep
795 ton gld
1726 ton global

2013 dec
798 ton gld
1810 ton global

2012 dec
1351 ton gld
2690 ton global

2011 dec
1255 ton gld
2457 ton global

2010 dec
1281 ton gld
2146 ton global

2009 dec
1133 ton gld
1816 ton global

2008 dec
780 ton gld
1202 ton global