Year of diagnosis

Number of cases per year

Annual estimate of population

Ratio

Incidence rate per 100,000 inhabitants

1988

3

8,356,305

3.5901E−07

0.04

1989

8

8,579,823

9.3242E−07

0.09

1990

5

8,811,034

5.6747E−07

0.06

1991

5

9,050,084

5.5248E−07

0.06

1992

2

9,297,113

2.1512E−07

0.02

1993

7

9,552,476

7.3279E−07

0.07