Kilham & Mann (1974) found that only 16% of Australian women went all the way to 450 volts in a replication of Milgram's study. This shows cultural differences.
Mantell (1971) replicated Milgram's study in Germany and found 85% of participants went to 450 volts. This shows cultural differences.
Milgram (1963) found that 65% of participants went to the maximum 450 volts when ordered by an authority figure.