| 年份 | R (实际值) | R* (适度规模) |
| 2006 | 10,663.40 | 5217.47 |
| 2007 | 15,282.49 | 6732.84 |
| 2008 | 19,460.3 | 8240.01 |
| 2009 | 23,991.52 | 10,570.11 |
| 2010 | 28,473.38 | 14,556.82 |
| 2011 | 31,811.48 | 19,811.14 |
| 2012 | 33,115.89 | 21,712.04 |
| 2013 | 38,213.15 | 24,679.23 |
| 2014 | 38,430.18 | 32,843.20 |
| 2015 | 33,303.62 | 28,273.40 |