| Calendar Year | Outpatient Percent | Inpatient Percent |
|---|---|---|
| 1980 | 18.90 | 17.40 |
| 1981 | 20.30 | 17.70 |
| 1982 | 16.20 | 14.30 |
| 1983 (Introduction of Medicare PPS) | 13.10 | 8.30 |
| 1984 | 14.90 | 5.40 |
| 1985 | 19.30 | 4.50 |
| 1986 | 16.00 | 5.00 |
| 1987 | 15.30 | 6.60 |
| 1988 | 17.80 | 7.60 |
| 1989 | 15.70 | 8.10 |
| 1990 | 18.90 | 9.20 |
| 1991 | 18.20 | 8.30 |
| 1992 | 15.30 | 7.00 |
| 1993 (Growth of Managed Care) | 9.80 | 5.00 |
| 1994 (Growth of Managed Care) | 9.80 | 2.30 |
| 1995 (Growth of Managed Care) | 8.80 | 1.60 |
| 1996 (Growth of Managed Care) | 9.50 | 1.50 |
| 1997 (Growth of Managed Care) | 11.10 | 0.40 |
| 1998 (Growth of Managed Care) | 5.70 | 2.30 |
| 1999 (Growth of Managed Care) | 4.80 | 3.20 |
| 2000 | 8.70 | 3.40 |