sale volume curve and the price curve

1. Price history of Nokia 3500 classic
Jan’12
Sep’11
may12
Jan’11
Sep’10
May’11
Jan’10
Sep’09
Ma’y10
Jan’09
Sep’08
Ma’y09
sep’07
Ma’y08
Jan’08
Tk.11000
Tk.10000
Tk.9400
Tk.9100
Tk.8800
Tk.8500

2. Sales volume of Nokia 3500 classic
Jan’12
Sep’11
may12
Jan’11
Sep’10
May’11
Jan’10
Sep’09
Ma’y10
Jan’09
Sep’08
Ma’y09
sep’07
Ma’y08
Jan’08
180000
150000
120000
90000
60000
30000