Somerset County (SOM)
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York
| Year |
Total stations |
Mobiles | Portables | Rovers |
% of grand total |
County total |
| 1987 | 12 | 5 | 1 | 0 | 0.72% | 79,468 |
| 1988 | 5 | 3 | 0 | 0 | 0.37% | 39,542 |
| 1989 | 2 | 1 | 0 | 0 | 0.34% | 0.71% |
| 1990 | 7 | 5 | 0 | 0 | 0.71% | 91,199 |
| 1991 | 7 | 5 | 1 | 0 | 0.24% | 27,684 |
| 1992 | 4 | 3 | 0 | 0 | 0.23% | 24,749 |
| 1993 | 1 | 1 | 0 | 0 | 0.01% | 1,067 |
| 1994 | 2 | 0 | 0 | 0 | 0.09% | 12,079 |
| 1995 | 2 | 1 | 0 | 0 | 0.17% | 24,838 |
| 1996 | 3 | 1 | 0 | 0 | 0.17% | 24,314 |
| 1997 | 3 | 0 | 0 | 1 | 0.23% | 32,438 |
| 1998 | 4 | 2 | 1 | 0 | 0.35% | 58,436 |
| 1999 | 4 | 2 | 1 | 0 | 0.56% | 83,350 |
| 2000 | 4 | 2 | 1 | 0 | 0.64% | 93,568 |
| 2001 | 7 | 5 | 0 | 0 | 0.57% | 88,174 |
| 2002 | 7 | 3 | 1 | 0 | 1.07% | 188,248 |
| 2003 | 6 | 4 | 1 | 0 | 1.17% | 163,625 |
| 2004 | 6 | 3 | 1 | 0 | 0.88% | 100,823 |
| 2005 | 5 | 2 | 0 | 0 | 0.42% | 53,668 |
| 2006 | 5 | 3 | 0 | 0 | 0.51% | 55,997 |
| 2007 | 5 | 2 | 0 | 0 | 0.72% | 74,356 |