Because of high tuition costs at state and private universities, enrollments at community colleges have increased dramatically in recent years. the following data show the enrollment (in thousands) for jefferson community college for the nine most recent years. click on the datafile logo to reference the data. year period (t) enrollment (1,000s) 2001 1 6.5 2002 2 8.1 2003 3 8.4 2004 4 10.2 2005 5 12.5 2006 6 13.3 2007 7 13.7 2008 8 17.2 2009 9 18.1