| 2007 | 7.1% |
| 2008 | 10.2% |
| 2009 | 13.1% |
| 2010 | 11.9% |
| 2011 | 10.4% |
| 2012 | 11.2% |
| 2013 | 11.1% |
| 2014 | 9.5% |
| 2015 | 9.6% |
| 2016 | 10.40% |
| 2017 Q2 | 10.30% |
| 2007 | $70.09 |
| 2008 | $72.11 |
| 2009 | $55.18 |
| 2010 | $53.32 |
| 2011 | $57.43 |
| 2012 | $61.18 |
| 2013 | $64.12 |
| 2014 | $67.63 |
| 2015 | $71.46 |
| 2016 | $72.63 |
| 2017 Q2 | $73.64 |
| 2006 | $3,893 |
| 2007 | $4,269 |
| 2008 | $4,151 |
| 2009 | $3,826 |
| 2010 | $3,832 |
| 2011 | $3,699 |
| 2012 | $3,916 |
| 2013 | $4,117 |
| 2014 | $4,408 |
| 2015 | $4,527 |
| 2016 | $4,683 |
| 2017 | $4,751 |
| 2006 | $880,000 |
| 2007 | $860,000 |
| 2008 | $1,060,000 |
| 2009 | $1,010,000 |
| 2010 | $1,050,000 |
| 2011 | $1,320,000 |
| 2012 | $1,160,000 |
| 2013 | $1,290,000 |
| 2014 | $1,350,000 |
| 2015 | $1,410,000 |
| 2016 | $1,600,000 |
| 2017 Q2 | $1,800,000 |
| 2007 | $710,000 |
| 2008 | $630,000 |
| 2009 | $650,000 |
| 2010 | $680,000 |
| 2011 | $660,000 |
| 2012 | $650,000 |
| 2013 | $710,000 |
| 2014 | $740,000 |
| 2015 | $785,000 |
| 2016 | $795,000 |
| 2017 | $825,000 |
| 2006 | 5.90% |
| 2007 | 5.65% |
| 2008 | 4.41% |
| 2009 | 6.90% |
| 2010 | 6.30% |
| 2011 | 5% |
| 2012 | 4.8% |
| 2013 | 4.60% |
| 2014 | 4.20% |
| 2015 | 3.80% |
| 2006 | 8.20% |
| 2007 | 7.50% |
| 2008 | 8.00% |
| 2009 | 8.10% |
| 2010 | 7.00% |
| 2011 | 6.50% |
| 2012 | 6.30% |
| 2013 | 6.10% |
| 2014 | 6.70% |
| 2015 | 6.50% |
| 2006 | 3.83% |
| 2007 | 4.15% |
| 2008 | 4.08% |
| 2009 | 4.79% |
| 2010 | 5.31% |
| 2011 | 4.85% |
| 2012 | 4.50% |
| 2013 | 4.30% |
| 2014 | 4.10% |
| 2015 | 4.00% |