                                            The SAS System         10:44 Friday, November 14, 2008   1

                                         The MEANS Procedure

       Variable              N            Mean         Std Dev         Minimum         Maximum
       ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ
       lnWTP               115       4.4590099       0.7511914       2.1224055       6.2213056
       year_indx           120       9.4916667       6.0390826       1.0000000      22.0000000
       discrete            120       0.2750000       0.4483865               0       1.0000000
       volunt              120       0.0500000       0.2188588               0       1.0000000
       nonparam            120       0.5000000       0.5020964               0       1.0000000
       INCOME              120        56806.24        13903.11        34955.22       158347.16
       ladder_study        120       0.3416667       0.4762570               0       1.0000000
       OUTLIER_BIDS        120       0.9416667       0.2353554               0       1.0000000
       single_river        120       0.2250000       0.4193332               0       1.0000000
       single_lake         120       0.0833333       0.2775443               0       1.0000000
       multiple_river      120       0.0583333       0.2353554               0       1.0000000
       regional_fresh      120       0.3583333       0.4815213               0       1.0000000
       salt_pond           120       0.0333333       0.1802581               0       1.0000000
       num_rivers_ponds    120       1.0083333       2.9831342               0      15.0000000
       mr                  120       0.0750000       0.2644957               0       1.0000000
       mp                  120       0.0333333       0.1802581               0       1.0000000
       nonusers            120       0.0916667       0.2897647               0       1.0000000
       allmult             120       0.2000000       0.4016772               0       1.0000000
       nonspec             120       0.4000000       0.4919520               0       1.0000000
       lnquality_ch        120       2.8983748       0.6002382       0.9162907       4.1743873
       fish_use            120       0.5583333       0.4986677               0       1.0000000
       fishplus            120       0.0833333       0.2775443               0       1.0000000
       lnbase              120       3.4785494       0.7950465       1.6094379       4.3174881
       mail                120       0.4833333       0.5018174               0       1.0000000
       lump_sum            120       0.1333333       0.3413599               0       1.0000000
       non_reviewed        120       0.3166667       0.4671266               0       1.0000000
       median_WTP          120       0.0416667       0.2006642               0       1.0000000
       ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ
