Year	Subscribers	Avg. Bill $
1987	1.2	96.83
1988	2.1	98.02
1989	3.5	89.3
1990	5.3	80.9
1991	7.6	72.74
1992	11	68.68
1993	16	61.48
1994	24.1	56.21
1995	33.8	51
1996	44	47.7
1997	55.3	42.78
1998	69.2	39.43
1999	86	41.24