How many possible code combinations are there for this kind of lock?

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The possible codes are from 0000 to 9999 inclusive. There are 10 possibilities for each ring, thus there are 10*10*10*10 possible codes.
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Answers by country

999
1000
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answers
flagPakistan
20%
10%
10%
60%
10
flagGermany
0%
8%
33%
58%
36
flagUnknown
5%
5%
35%
52%
17
flagthe United States
6%
6%
38%
46%
144
flagPoland
5%
6%
43%
43%
11264
flagIndia
6%
6%
45%
39%
86
flagthe Philippines
0%
16%
50%
33%
18
flagthe United Kingdom
6%
6%
57%
28%
45