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Statewide Coefficients of Dispersion
1989 through 1999 Property Value Studies

Statewide Coefficients of Dispersion
1989 through 1999 Property Value Studies
The table below compares the statewide coefficients of dispersion from the 1989 to 1999 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. See page 10 for a detailed explanation of coefficients of dispersion.
Property Category 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
A. Single-family Residential 15.18 13.84 14.11 13.12 12.93 10.74 12.11 11.36 11.06 9.68 9.47
B. Multifamily Residential 13.41 11.73 13.27 10.84 12.66 8.38 10.06 8.43 7.71 7.34 7.98
C. Vacant Lots 22.93 21.57 23.16 22.66 22.01 19.27 18.21 19.86 17.10 15.17 13.74
D. Acreage (market value) 16.95* 16.90* 15.98* 15.50* 16.31* 18.49* 14.92* 14.60* 15.62* 16.09* 15.17
E. Farm & Ranch Improvements * * * * * * * * * * *
F1. Commercial Real 18.21 16.54 15.58 15.80 14.38 12.59 13.28 11.34 11.01 10.51 11.05
F2. Industrial Real ** ** ** ** ** ** ** ** ** ** **
G. Oil, Gas & Minerals 16.71 11.00 12.94 9.41 11.20 13.01 12.61 18.95 4.85 7.38 20.42
J. Utilities 24.13 20.50 20.38 17.28 14.18 14.35 12.50 12.40 10.76 9.64 3.75
L1. Commercial Personal 20.75 18.09 17.54 16.36 10.83 8.14 11.95 20.73 11.20 9.24 7.62
L2. Industrial Personal ** ** ** ** ** ** ** ** ** ** **
M. Other Personal 14.02 14.59 17.19 ** ** ** ** ** ** ** **
O. Residential Inventory 20.95 14.51 13.84 ** ** ** ** ** ** ** **
OVERALL 17.64 16.73 16.18 14.58 13.97 12.86 13.17 13.47 11.64 10.86 11.40
* Beginning in 1989, taxable values for Farm & Ranch Improvements (formerly Category E) were merged into Category D with Acreage(market value).
Therefore, Category D for 1989 and subsequent years is not directly comparable to Category D in previous years.
** Too few sample observations were available to produce meaningful statewide median appraisal ratios or CODs for these properties.