Performance

Monthly Total Returns

as of 11/30/17

 Market PriceNAV
YTD 17.12% 16.61%
1 Year 15.06% 18.37%
3 Year 8.44% 9.45%
5 Year 9.73% 10.43%
10 Year 12.52% 10.78%
Since Inception (1/28/03) 8.58% 8.47%

Calendar Year Total Returns

 Market PriceNAV
2016 2.12% 8.15%
2015 14.51% 3.60%
2014 18.50% 19.04%
2013 -2.06% 4.18%
2012 23.22% 28.58%
2011 18.89% 9.75%
2010 27.76% 28.52%
2009 107.43% 81.05%
2008 -44.95% -46.03%
2007 -18.41% -14.13%
2006 19.15% 8.62%
2005 -19.28% 1.66%
2004 6.01% 6.01%
2003 (Partial Year) 17.28% 16.08%

Quarterly Total Returns

as of 9/30/17

 Market PriceNAV
YTD 20.20% 15.83%
1 Year 11.21% 13.40%
3 Year 12.28% 10.06%
5 Year 10.40% 10.91%
10 Year 12.31% 9.91%
Since Inception (1/28/03) 8.88% 8.52%

Performance data quoted represents past performance, which is no guarantee of future results, and current performance may be lower or higher than the figures shown. Since Inception returns assume a purchase of common shares at the initial offering price of $25.00 per share for market price returns or initial net asset value (NAV) of $23.88 per share for NAV returns. Returns for periods of less than one year are not annualized. All distributions are assumed to be reinvested either in accordance with the dividend reinvestment plan (DRIP) for market price returns or NAV for NAV returns. Until the DRIP price is available from the Plan Agent, the market price returns reflect the reinvestment at the closing market price on the last business day of the month. Once the DRIP is available around mid-month, the market price returns are updated to reflect reinvestment at the DRIP price.