0
25
50
75
100
1990
1998
2006
1994
2002
Jul 2009
CSCO: (O: 18.84; H: 19.1; L: 18.45; C: 18.5)
ENV upper: 22.27
ENV lower: 18.22
1990
1998
2006
1994
2002
⛶
ENV lower: 18.22
CSCO: (O: 18.84; H: 19.1; L: 18.45; C: 18.5)
ENV upper: 22.27
ENV lower: 18.22