Which blood type is the least common?

0-
0+
AB-
AB+
AB is the rarest of all AB0 types, and Rh- is always less common than Rh+. In Western Europe, only 1% of the pop­u­la­tion has AB-. In the Eastern Asia Rh- is very rare: in Japan, only 0,05% of the pop­u­la­tion has AB-.

Answers distribution

0-
0+
AB-
AB+
answers
flagUkraine
11%
5%
66%
16%
18
flagthe Philippines
0%
18%
63%
18%
11
flagLithuania
18%
0%
63%
18%
11
flagIndia
30%
4%
55%
9%
103
flagAustralia
33%
5%
50%
5%
18
flagRepublic of Ireland
39%
4%
47%
8%
46
flagGermany
35%
9%
46%
7%
115
flagSweden
33%
13%
46%
6%
15
flagPoland
36%
8%
45%
9%
10160
flagthe United States
29%
8%
44%
16%
349
flagthe United Kingdom
36%
11%
42%
9%
239
flagNorway
47%
5%
42%
5%
19
flagCanada
27%
13%
41%
16%
43
flagthe Netherlands
28%
15%
40%
12%
32
flagUU
38%
14%
38%
8%
34
flagItaly
35%
3%
35%
25%
28
flagFrance
44%
6%
34%
13%
29
flagSpain
33%
8%
33%
25%
12
flagSwitzerland
50%
20%
30%
0%
10

Gender

men40%
women48%
0-
36%
34%
0+
11%
8%
AB-
40%
48%
AB+
11%
8%

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Which blood type is the least common?
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