Demographics of Zambia
Population
Table:
Total population (x 1000)[4]

Population aged 0–14 (%)

Population aged 15–64 (%)

Population aged 65+ (%)

1950

2 340
44.9
52.3
2.7

1955

2 653
44.7
52.7
2.6

1960

3 045
44.9
52.6
2.5

1965

3 537
45.2
52.2
2.6

1970

4 139
46.4
50.9
2.7

1975

4 900
47.0
50.3
2.7

1980

5 775
47.3
49.9
2.8

1985

6 785
46.6
50.6
2.8

1990

7 860
45.8
51.4
2.8

1995

8 919
45.3
51.8
2.9

2000

10 202
45.3
51.8
2.9

2005

11 462
45.9
51.0
3.0

2010

13 089
46.4
50.6
3.1

Given the tabular data covering 'Demographics of Zambia' (see 'Population'), compose one sentence describing only the highlighted cells and format it within the following JSON object {"answer": "YOUR ANSWER"}.