Table:
1996
2016

workers
proportion of workers aged 55 and over
median age
ratio of younger workers to older workers
workers
proportion of workers aged 55 and over
median age
ratio of younger workers to older workers

number
percent
years
ratio
number
percent
years
ratio

occupation

transport truck drivers
198,000
12.2
40.0
2.49
278,500
31.4
48.9
0.57

retail salespersons
201,300
10.5
32.8
3.44
271,200
21.1
33.3
1.00

janitors, caretakers and building superintendents
168,800
19.6
41.1
0.99
160,800
36.9
50.9
0.35

construction trades helpers and labourers
75,800
7.5
33.1
3.48
152,200
14.9
35.9
2.16

automotive service technicians, truck and bus mechanics and mechanical repairers
120,500
8.7
36.3
5.10
147,900
19.3
41.0
1.60

material handlers
105,400
7.0
34.1
4.41
146,600
19.3
40.2
1.38

carpenters
93,000
12.2
39.2
3.24
144,600
20.3
39.9
2.00

cooks
92,400
5.8
27.8
5.60
124,500
10.2
28.9
2.38

store shelf stockers, clerks and order fillers
78,300
2.8
21.7
5.82
108,600
12.0
24.3
1.34

landscaping and grounds maintenance labourers
54,300
8.4
27.5
2.60
83,100
19.4
32.2
0.97

welders and related machine operators
78,600
9.3
38.8
4.69
83,000
19.0
40.3
1.70

electricians
39,500
9.6
38.5
4.68
82,100
15.8
36.7
2.42

delivery and courier service drivers
82,100
10.3
35.4
3.29
80,400
30.5
47.0
0.55

shippers and receivers
85,600
6.8
33.9
6.57
80,100
21.7
42.7
0.94

heavy equipment operators
52,300
13.8
41.1
2.18
72,800
25.3
44.8
0.95

Statement: among men, 20% of janitors, caretakers and building superintendents were aged 55 and over in 1996.
Question: what is the percentage of men aged 55 and over among janitors, caretakers and building superintendents in 1996?
Answer: [19.6]