マイナンバーの最下位桁の出現頻度を調べる

mynumber.py

#coding: utf-8
# マイナンバーの最下位桁の出現頻度を調べる
# http://law.e-gov.go.jp/announce/H26F11001000085.html

import random

def check(number):
    P = map(int, ("%011d"%number)[::-1])
    Q = [n+1 if n<=6 else n-5 for n in range(1,12)]
    r = sum(p*q for p,q in zip(P,Q)) % 11
    return 11-r if r>=2 else 0

N = 1000000

random.seed(1234)

c = [0]*10
for i in range(N):
    number = random.randint(0,10**11-1)
    c[check(number)] += 1

for i in range(10):
    print "%d %8d %8.2f%%"%(i, c[i], float(c[i])/N*100)

result.txt

0   181544    18.15%
1    90727     9.07%
2    91210     9.12%
3    90816     9.08%
4    91469     9.15%
5    90942     9.09%
6    90758     9.08%
7    90397     9.04%
8    91306     9.13%
9    90831     9.08%