Table 4.

Indices of population aging in Guangzhou from 2000 to 2020.

Sub district	Number of older people			Population aging rate (%)			Population aging speed (%)
	2000	2010	2020	2000	2010	2020	2000–2010	2010–2020
Central area	330,602	461,145	668,999	7.46	8.52	9.97	39.49	45.07
suburban area	103.128	158,273	300,684	3.91	4.30	4.55	53.47	89.98
Outskirt area	172.429	228,112	355,474	6.00	6.32	6.65	32.29	55.83
Entire city	606.159	847,530	1,325,157	6.10	6.67	7.82	39.82	56.36