28.518568171.49
29.048594770.96
30.488508569.52
31.918417768.09
33.358315366.65
34.788203865.22
36.228083763.78
37.667956362.34
39.097824160.91
40.537685159.47
41.767570558.24
42.997454457.01
44.347316055.66
45.897149654.11
46.997039953.01
48.346893851.66
49.956711350.05余年份数据为在年度人口抽样调查