Table:
all-cause
circulatory diseases
digestive diseases
cancer

ashr
95% confidence interval
ashr
95% confidence interval
ashr
95% confidence interval
ashr
95% confidence interval

from
to
from
to
from
to
from
to

canadian-born
891.2
890.1
892.3
157.7
157.3
158.2
114.5
114.1
114.8
86.0
85.7
86.4

immigrant category

refugee
493.5
486.5
500.6
97.8
94.5
101.2
67.0
64.5
69.6
58.7
56.4
61.1

family
507.5
504.3
510.7
94.4
93.1
95.9
63.2
62.1
64.4
59.8
58.7
60.9

economic
389.1
385.4
392.9
68.5
66.8
70.1
52.9
51.6
54.2
60.8
59.4
62.2

source area

poland
488.1
476.1
500.4
106.6
100.7
112.8
60.0
56.1
64.3
67.1
62.9
71.6

vietnam
385.8
376.6
395.3
55.9
52.4
59.7
51.5
48.2
55.0
59.7
56.3
63.4

middle east
510.3
498.6
522.4
109.4
103.8
115.4
65.9
61.9
70.1
56.1
52.4
60.1

total immigrant landing file immigrants
470.4
468.3
472.5
88.4
87.4
89.3
60.6
59.9
61.4
59.7
59.0
60.5

Statement: the low all-cause ashrs among vietnamese refugees was largely attributable to their low circulatory disease-specific ashrs.
Question: what was the number of the circulatory disease-specific ashr among vietnamese refugees?
Answer: [55.9]