Similarly, the rate of autism in Sweden also
appears to have begun to increase in the mid to late 1980s and, in fact, may
have started much earlier. Population-based data representative of the city of
Gothenburg (Sweden’s second-largest city) shows an earlier increase in the
prevalence of autism and autism-like conditions from 4.0/10,000 children in
1980, to 7.5/10,000 in 1984, to 11.6/10,000 in 1988