| Date | Quantity (Ounces) | Quantity (tons) | Variation n-1 |
|
1/1/2010
|
9,976,376.67
|
310.30
|
0.00%
|
|
1/1/2009
|
9,976,376.67
|
310.30
|
0.03%
|
|
1/1/2006
|
9,973,161.60
|
310.20
|
-0.19%
|
|
1/1/2005
|
9,992,452.04
|
310.80
|
-0.45%
|
|
1/1/2004
|
10,037,463.09
|
312.20
|
-0.32%
|
|
1/1/2003
|
10,069,613.84
|
313.20
|
-0.22%
|
|
1/1/2002
|
10,092,119.36
|
313.90
|
-11.63%
|
|
1/1/2001
|
11,419,945.19
|
355.20
|
-27.14%
|
|
1/1/2000
|
15,673,488.97
|
487.50
|
-23.72%
|
|
1/1/1999
|
20,547,542.15
|
639.10
|
-10.64%
|
|
1/1/1998
|
22,994,213.97
|
715.20
|
24.84%
|
|
1/1/1997
|
18,419,162.73
|
572.90
|
-0.03%
|
|
1/1/1996
|
18,425,592.88
|
573.10
|
-0.03%
|
|
1/1/1995
|
18,432,023.03
|
573.30
|
-0.03%
|
|
1/1/1994
|
18,438,453.18
|
573.50
|
-0.03%
|
|
1/1/1993
|
18,444,883.32
|
573.70
|
-0.92%
|
|
1/1/1992
|
18,615,282.28
|
579.00
|
-1.46%
|
|
1/1/1991
|
18,891,778.70
|
587.60
|
-0.25%
|
|
1/1/1990
|
18,940,004.82
|
589.10
|
-0.24%
|
|
1/1/1989
|
18,985,015.87
|
590.50
|
-0.10%
|
|
|
|
