Influencers

Distributions of each blood types are influenced by time, sex etc.

Distribution of Lower House Members in Japan

When economic crises hit Japan, O members decreased but A increased. A is a good defender.

Date Type O Type A Type B Type AB
Sep-72 37.6% 29.6% 18.2% 14.6%
Sep-76 36.0% 30.9% 18.3% 14.8%
May-80 35.9% 32.6% 18.5% 12.9%
Sep-83 32.1% 34.5% 20.1% 13.3%
May-86 32.2% 36.0% 19.1% 12.6%
Feb-90 31.1% 38.1% 18.3% 12.8%
Jun-93 30.0% 36.0% 22.1% 11.9%
Aug-96 30.8% 35.7% 20.9% 12.6%
May-00 29.1% 36.4% 23.1% 11.3%
Aug-03 29.6% 34.4% 23.1% 12.9%
Aug-05 26.7% 35.6% 25.9% 11.9%
Aug-09 27.2% 39.5% 23.0% 10.3%
Sep-12 29.3% 39.4% 20.4% 11.0%
Sep-14 27.4% 38.4% 23.1% 11.0%
Avg. Japan 30.7% 38.1% 21.8% 9.4%

 

Source: Masayuki Kanazawa (2016)  

Why are type B women so popular ? -- 300,000 people solved the mystery of blood types

金澤正由樹 B型女性はなぜ人気があるのか-30万人のデータが解く血液型の謎 

Distribution of Professional Golfers

Strong male B players vs strong female A players.

  

Top 20 Career Earnings of Japanese Professional Golfers (2015)

Sex Type O Type A Type B Type AB
Male 5 5 9 1
Female 2 10 6 2

 

Source: The Japan Golf Tour Organization and the Ladies Professional Golfers' Association of Japan