But last year, the number dropped 25 percent, to 173 from 296 in 1993, officials said.
By the close of the 1850s, the number had dropped to 22.
In its second hour the number dropped to 9.3 million.
The number dropped by four percent from 1980 to 1988.
Before long, the number of students dropped to 130 from 230.
The number dropped to about 390, or 9 percent, in 2001, the most recent year for which national data is available.
But the number dropped back to 6 out of 60.
In the following two years the number dropped to around 400.
The number had dropped 13 percent between 1997 and 1998, to 6.2 million.
The number of those students has already dropped to 22,000 from 27,000 a year ago.