1993: 750,000
1994: 1,100,000
1995: 1,900,000
1996: 3,300,000
1997: 3,250,000
1998: 3,500,000
1999: 4,000,000
2000: 4,200,000
2001: 4,500,000 (estimated)
Return to 511 Business Models and Costs Considerations report