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Year Total
stations
Mobiles Portables Rovers % of
grand
total
County
total
1987  5 5 0 0 0.05% 5,609
1988 7 7 0 0 0.06% 6,091
1989 3 2 1 0 0.11% 11,084
1990 7 6 0 0 0.07% 8,523
1991 7 6 1 0 0.05% 6,082
1992 6 4 1 0 0.32% 34,111
1993 3 2 0 0 0.10% 9,770
1994 4 3 1 0 0.25% 35,051
1995 2 1 0 0 0.33% 46,893
1996 7 5 1 0 0.53% 76,060
1997 9 6 1 1 0.99% 138,750
1998 7 2 1 1 1.07% 178,117
1999 6 3 1 1 0.44% 65,488
2000 4 2 1 0 0.33% 49,012
2001 6 3 2 1 0.63% 97,417
2002 6 4 2 0 0.66% 116,980
2003 9 7 1 0 0.44% 62,058
2004 6 4 1 0 0.40% 45,572
2005 5 3 1 1 0.65% 83,881
2006 5 3 2 0 0.43% 47,332
2007 3 2 0 0 0.20% 20,940



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