2011 at a glance
The range between the year's low and high was $22.54, or 86.2% of the low – a measure of how volatile silver was in 2011.
Compared with 2010, the average price increased by 73.9%, from $20.19 to $35.12 per ounce.
For a 1-kilogram silver bar, the average 2011 value was $1,129. A gram of sterling silver (925) averaged $1.04.
Compare with today on the live silver price page.