Table 7.

Decomposition of contribution rate (%).

	Whole sample	Age ≤ 40	40 < age ≤ 60	Age > 60
Education	5.56	10.92	4.42	1.69
Age	60.12	29.03	17.92	8.59
Happiness	14.00	38.49	39.62	45.12
Income	5.70	4.32	12.91	21.24
Sex	1.03	1.85	4.47	3.92
Marriage	0.99	3.29	5.43	2.51
Work	12.61	12.10	15.23	16.93