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DATE: 06/29/2006                         COMPTROLLER OF PUBLIC ACCOUNTS - PROPERTY TAX DIVISION                         PAGE:      1
TIME: 10:34:56                                       2005 CONFIDENCE INTERVAL DETAIL                                    REPT: PTS428
                                                              015/Bexar                                                 VRSN:      W
                                                        015-907/San Antonio ISD
____________________________________________________________________________________________________________________________________
    (1)           (1)                (1)              (1)                (1)              (2)            (3)
 # STRATUM     CATEGORY          LOCAL VALUE     STRATUM RATIO       STATE VALUE     SAMPLE SIZE    TOTAL PARCELS   STRATUM VARIANCE
 _________     ________          ___________     _____________       ___________     ___________    _____________   ________________

      1           A            1,103,540,061        0.9358         1,179,247,768              41           26,802         .123636590
      2           A            1,091,983,507        0.9112         1,198,401,566              39           19,228         .049067518
      3           A            1,093,285,231        0.9737         1,122,815,273              44           14,761         .016995986
      4           A            1,093,482,678        0.9765         1,119,797,929              43            6,913         .028879310
      5           B              132,809,967        0.9012           147,370,136              24            2,079         .034154062
      6           B              132,900,462        0.9216           144,206,230              45              989         .041234574
      7           B              132,901,519        0.9704           136,955,399               9              249         .002227636
      8           B              132,397,989        0.8885           149,012,931               8               35         .027396844
      9           C               30,754,111        0.8637            35,607,400              27            4,738         .313599318
     10           C               30,759,668        1.0005            30,744,296               8              732         .025402711
     11           C               30,906,708        0.9938            31,099,525               7              172         .002167997
     12           C               30,575,149        0.9879            30,949,640               6               29         .000214729
     13           F1             696,474,092        1.0203           682,616,968              25            2,765         .016712873
     14           F1             694,549,168        0.9617           722,209,803              14              510         .007662956
     15           F1             704,029,716        0.9801           718,324,371              12              109         .019547750
     16           F1             686,317,156        0.9298           738,134,175              10               23         .003963361
     17           L1             277,095,605        1.0247           270,416,322               7            2,448         .013275122
     18           L1             277,011,556        1.0592           261,529,037               7              408         .014800699
     19           L1             276,922,506        0.8798           314,756,201               7              118         .029908842
     20           L1             275,957,282        0.9967           276,870,956               6               32         .002373115
  RANDOM TOTALS:               8,924,654,131                       9,311,065,926             389           83,140
  CATG D1 EXCEPTION VALUES:          160,211                             240,694
 TOTAL TEST VALUES (4):        8,924,814,342                       9,311,306,620
 MARGIN OF ERROR PERCENT:          5.0000000
 MARGIN OF ERROR VALUE:          465,565,331
 CONFIDENCE INTERVAL VALUES (5):
   STATE LOWER LIMIT:          8,845,741,289 (STATE TEST VALUE MINUS MARGIN OF ERROR PERCENT)
   LOCAL TEST VALUE:           8,924,814,342 (WITHIN CONFIDENCE INTERVAL)
   STATE UPPER LIMIT:          9,776,871,951 (STATE TEST VALUE PLUS MARGIN OF ERROR PERCENT)
 VALUE ASSIGNED (6):           8,542,207,484 (SEE ISD SUMMARY WORKSHEET)

 SOURCES:
 (1) SEE STRATIFIED CATEGORY WORKSHEET REPORTS PTS236, PTS430
 (2) NUMBER OF PARCELS SAMPLED BY STAFF
 (3) TOTAL CATEGORY PARCELS FROM STRATIFICATION REPORT APPRAISAL ROLL, OR SELF-REPORT
 (4) INCLUDES ANY PARCELS IN A, B, C, D3, F1, G1, G2,OR L1 MARKED AS EXCEPTION PROPERTIES
 (5) UNSTUDIED CATEGORIES AND SUB-CATEGORIES WERE NOT INCLUDED IN THE CONFIDENCE INTERVAL VALUES