x =

         35.30         29.70         30.80         58.80         61.40         71.30

         74.40         76.70         70.70         57.50         46.40         28.90

         28.10         39.10         46.80         48.50         59.30         70.00

         70.00         74.50         72.10         58.10         44.60         33.40

         28.60


y =

         10.98         11.13         12.51          8.40          9.27          8.73

          6.36          8.50          7.82          9.14          8.24         12.19

         11.88          9.57         10.94          9.58         10.09          8.11

          6.83          8.88          7.68          8.47          8.86         10.36

         11.08