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Statewide Coefficients of Dispersion
1992 through 2002 Property Value Studies

The table below compares the statewide coefficients of dispersion from the 1992 to 2002 Property Value Studies. The statewide coefficient of dispersion for an individual property category was calculated using the appraisal ratios of all Property Tax Division sample properties in that category from across the state. The overall statewide coefficient of dispersion was calculated using the appraisal ratios for all sample properties.

  Property Category 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Prel. 2002
A. Single-family Residential 13.12 12.93 10.74 12.11 11.36 11.06 9.68 9.23 10.05 10.68 10.47
B. Multi-family Residential 10.84 12.66 8.38 10.06 8.43 7.71 7.34 7.63 7.70 8.91 9.13
C. Vacant Lots 22.66 22.01 19.27 18.21 19.86 17.10 15.17 13.68 14.79 17.29 18.15
D. Acreage (market value) 15.50* 16.31* 18.49* 14.92* 14.60* 15.62* 16.09* 14.51* 14.96* 15.64* 15.24*
E. Farm & Ranch Improvements * * * * * * * * * * *
F1. Commercial Real 15.80 14.38 12.59 13.28 11.34 11.01 10.51 10.59 10.56 10.39 10.14
F2. Industrial Real ** ** ** ** ** ** ** ** ** ** **
G. Oil, Gas & Minerals 9.41 11.20 13.01 12.61 18.95 4.85 7.38 20.52 7.15 31.30 11.52
J. Utilities 17.28 14.18 14.35 12.50 ME 10.76 9.64 12.78 12.26 12.00 11.83
L1. Commercial Personal 16.36 10.83 8.14 11.95 20.73 11.20 9.24 7.52 8.19 8.32 8.54
L2. Industrial Personal ** ** ** ** ** ** ** ** ** ** **
M. Other Personal ** ** ** ** ** ** ** ** ** ** **
O. Residential Inventory ** ** ** ** ** ** ** ** ** ** **
  OVERALL 14.58 13.97 12.86 13.17 13.47 11.64 10.86 11.79 11.53 12.26 11.75

2002 - Preliminary
   * Beginning in 1989, taxable values for Farm & Ranch Improvements (formerly Category E) were merged into Category D with Acreage (market value).
** Too few sample observations were available to produce meaningful statewide coefficients of disperson for these properties.