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Year Total
stations
Mobiles Portables Rovers % of
grand
total
County
total
1987  1 1 0 0 0.01% 794
1988 4 2 0 0 1.56% 165,467
1989 5 3 0 0 1.48% 145,264
1990 4 1 0 0 0.83% 106,865
1991 4 2 1 0 1.27% 147,417
1992 4 2 2 0 0.90% 95,416
1993 7 4 2 0 1.77% 179,384
1994 5 2 1 0 2.78% 386,084
1995 5 3 1 0 1.41% 203,305
1996 7 5 1 0 2.40% 341,960
1997 12 5 3 1 0.35% 48,122
1998 5 2 2 0 1.49% 248,137
1999 3 2 1 0 1.17% 174,030
2000 4 3 0 0 1.10% 160,850
2001 7 1 2 0 2.37% 368,932
2002 6 2 0 0 2.09% 363,318
2003 6 2 2 0 2.38% 333,639
2004 7 3 1 1 2.52% 290,185
2005 2 1 0 0 0.36% 46,757
2006 6 1 1 1 2.15% 235,498
2007 7 1 2 1 4.01% 415,392



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