Table:
text: Miss USA 1991
Preliminary competition
Preliminary competition
State_ Interview Swimsuit Evening_gown Average
Pennsylvania 8.49 7.67 8.00 8.053
Rhode Island 7.86 6.89 7.33 7.360
South Carolina 7.77 7.87 8.06 7.900
South Dakota 8.07 8.12 7.91 8.033
Tennessee 7.80 8.47 8.25 8.173
Texas 8.09 7.56 7.53 7.727
Utah 8.53 7.86 8.15 8.180
Vermont 8.13 7.31 7.60 7.680
Virginia 8.57 7.88 7.77 8.073
Washington 8.20 7.47 7.57 7.747
West Virginia 8.04 7.69 7.66 7.797
Wisconsin 8.06 7.53 7.93 7.840
Wyoming 7.76 7.21 7.35 7.440

Question: What is Utah's lowest swimsuit interview rating of 8.53 under Miss USA 1991 preliminary competition?