Optimization of the Actuarial Model of Defined Contribution Pension Plan

Table 11

Investment returns rate.

Year	2007	2008	2009	2010	2011	2012
Asset	8.86𝐵	35.572𝐵	132.795𝐵	227.158𝐵	326.579𝐵	401.98𝐵
Investment rate	7.66%	2.6%	4.36%	2.85%	2.53%	5.68%

Resource: the national enterprise annuity fund business data in 2012, Human resources social security fund supervision, 2013.4.