The number rose to only 164,253 after a year, to 171,688 by the end of 1976 and to 232,000 until 1994.
Between 2000 and 2004 the number of Americans under 65 rose by 10 million.
In 1949, the number rose to 252 students and 12 teachers were on the staff.
The number of patients rose to over 3,000 in 1918.
Between 1970 and 1977, the number of students rose from about 200,000 to half a million.
Their number rose to around 130 at the end of 1996.
Later in the 19th century, their number rose to about 700.
Last year, the numbers rose to 221 schools with 68,604 students.
Without action, their number soon will rise above 40 million.
The number of such cases rose to 5,500 last year, from 4,391 in 1998.