Date | Quantity (Ounces) | Quantity (tons) | Variation n-1 |
1/1/2010
|
257,205.97
|
8.00
|
135.29%
|
1/1/2009
|
109,312.54
|
3.40
|
17.24%
|
1/1/2006
|
93,237.17
|
2.90
|
-14.71%
|
1/1/2005
|
109,312.54
|
3.40
|
-20.93%
|
1/1/2004
|
138,248.21
|
4.30
|
-18.87%
|
1/1/2003
|
170,398.96
|
5.30
|
-24.29%
|
1/1/2002
|
225,055.23
|
7.00
|
-2.78%
|
1/1/2001
|
231,485.38
|
7.20
|
-7.69%
|
1/1/2000
|
250,775.82
|
7.80
|
56.00%
|
1/1/1999
|
160,753.73
|
5.00
|
-27.54%
|
1/1/1998
|
221,840.15
|
6.90
|
16.95%
|
1/1/1997
|
189,689.40
|
5.90
|
-25.32%
|
1/1/1996
|
253,990.90
|
7.90
|
-50.63%
|
1/1/1995
|
514,411.95
|
16.00
|
21.21%
|
1/1/1994
|
424,389.86
|
13.20
|
-12.58%
|
1/1/1993
|
485,476.27
|
15.10
|
-29.44%
|
1/1/1992
|
688,025.98
|
21.40
|
-25.44%
|
1/1/1991
|
922,726.43
|
28.70
|
0.35%
|
1/1/1990
|
919,511.35
|
28.60
|
-10.34%
|
1/1/1989
|
1,025,608.82
|
31.90
|
-59.87%
|
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