Westmoreland County (WES)
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York
| Year |
Total stations |
Mobiles | Portables | Rovers |
% of grand total |
County total |
| 1987 | 5 | 4 | 0 | 0 | 0.05% | 5,565 |
| 1988 | 6 | 3 | 0 | 0 | 0.45% | 47,975 |
| 1989 | 3 | 1 | 0 | 0 | 0.14% | 13,370 |
| 1990 | 10 | 5 | 0 | 0 | 0.85% | 109,460 |
| 1991 | 4 | 3 | 0 | 0 | 0.05% | 5,830 |
| 1992 | 7 | 4 | 0 | 0 | 0.58% | 62,107 |
| 1993 | 3 | 1 | 0 | 0 | 0.41% | 41,361 |
| 1994 | 3 | 0 | 0 | 0 | 0.26% | 36,654 |
| 1995 | 3 | 1 | 0 | 0 | 0.67% | 96,243 |
| 1996 | 4 | 1 | 0 | 0 | 0.99% | 141,373 |
| 1997 | 8 | 0 | 0 | 0 | 2.04% | 284,433 |
| 1998 | 13 | 3 | 0 | 1 | 2.78% | 465,084 |
| 1999 | 8 | 3 | 0 | 0 | 2.32% | 344,946 |
| 2000 | 9 | 4 | 0 | 0 | 1.02% | 148,867 |
| 2001 | 11 | 7 | 0 | 0 | 0.84% | 131,270 |
| 2002 | 10 | 3 | 1 | 0 | 2.31% | 408,054 |
| 2003 | 7 | 4 | 0 | 0 | 1.01% | 141,886 |
| 2004 | 5 | 1 | 1 | 0 | 3.94% | 453,652 |
| 2005 | 9 | 0 | 1 | 0 | 2.59% | 332,859 |
| 2006 | 6 | 1 | 0 | 0 | 1.25% | 136,823 |
| 2007 | 2 | 0 | 0 | 0 | 2.79% | 288,776 |