Chicago - "thành phố nguy hiểm nhất thế giới"

Thành phố                     Số vụ án mạng/100.000 người
Chicago (Mỹ)                                           19,4
Sao Paolo (Brazil)                                   15,6
Moscow (Nga)                                          9,6
Mexico City (Mexico)                                8
Los Angeles (Mỹ)                                     7,5
New York (Mỹ)                                           6
Paris (Pháp)                                              4,4
Amsterdam (Hà Lan)                                1,8
Toronto (Canada)                                      1,7
London (Anh)                                            1,4
Sydney (Úc)                                               1
Berlin (Đức)                                               1
Tokyo (Nhật)                                             0,5