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Year Total
stations
Mobiles Portables Rovers % of
grand
total
County
total
1987 6 2 0 0 0.08% 9,339
1988 6 3 0 0 1.79% 189,361
1989 5 3 0 0 0.78% 77,121
1990 5 4 0 0 0.03% 3,358
1991 7 4 0 0 0.26% 29,592
1992 4 2 0 0 0.14% 14,638
1993 3 1 0 0 0.69% 70,033
1994 1 1 0 0 0.01% 821
1995 3 1 0 0 2.39% 343,351
1996 3 2 0 0 0.17% 24,141
1997 3 1 0 0 1.71% 237,930
1998 4 1 0 0 2.25% 375,158
1999 7 3 0 0 2.66% 395,288
2000 4 2 0 0 1.65% 241,867
2001 5 3 1 0 1.43% 222,486
2002 6 3 1 0 1.49% 263,025
2003 4 3 0 0 0.74% 104,397
2004 4 2 0 0 0.16% 18,703
2005 3 1 0 0 0.31% 39,319
2006 5 2 1 0 1.30% 142,475
2007 3 1 0 1 3.00% 310,914



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