Number of Casino Employees Crime Rate y, number of crimes
 Year         x, thousands            per 1,000 population
   1987                         15                        1.35
   1988                         18                        1.63
   1989                         24                        2.33
   1990                         22                        2.41
   1991                         25                        2.63
   1992                         29                        2.93
   1993                         30                        3.41
   1994                         32                        3.26
   1995                         35                        3.63
   1996                         38                        4.15