Adair    73  1965    -1  1968
        Alfalfa    77  2008   -11  1912
          Atoka    76  1989    -4  2017
         Beaver    78  1965   -18  1912
        Beckham    79  1965   -10  1912
         Blaine    77  2006   -12  2017
          Bryan    76  1921     3  1912
          Caddo    77  1897    -6  2017
       Canadian    72  1965    -4  2017
         Carter    77  2008    -3  2017
       Cherokee    75  1965    -6  1970
        Choctaw    74  1975     8  1968
       Cimarron    80  2006   -16  1988
      Cleveland    76  2008    -4  2017
           Coal    74  2008    -7  2017
       Comanche    80  2006    -5  1912
         Cotton    76  1965     0  2017
          Craig    75  1907    -6  1912
          Creek    76  1965     0  1968
         Custer    75  1965   -10  1912
       Delaware    75  1965    -5  1968
          Dewey    76  2008   -13  1912
          Ellis    85  2006   -17  1912
       Garfield    75  2008    -7  1912
         Garvin    77  2006    -4  2017
          Grady    75  1965   -12  2017
          Grant    75  2008    -6  1912
          Greer    78  2008    -3  2017
         Harmon    84  2006    -1  1940
         Harper    84  2006    -2  1968
        Haskell    73  1965     2  1968
         Hughes    76  1965    -1  1912
        Jackson    82  2006    -6  2017
      Jefferson    80  2006     0  1912
       Johnston    74  2008     0  1912
            Kay    74  2008    -6  1912
     Kingfisher    77  1965   -12  2017
          Kiowa    78  2008    -7  1912
        Latimer    72  1954    -3  1970
       Le_flore    78  1921   -10  1970
        Lincoln    76  1965    -3  2017
          Logan    76  2008    -6  2014
           Love    74  2008     2  2017
          Major    75  1965     2  2017
       Marshall    73  1975     2  2017
          Mayes    75  1965    -4  1968
        Mcclain    76  1965    -3  2017
      Mccurtain    79  1927     0  2017
       Mcintosh    74  1965     2  1970
         Murray    73  1965    -7  2017
       Muskogee    74  1907    -3  1912
          Noble    75  2008    -3  2014
         Nowata    75  1965    -3  1968
       Okfuskee    75  1965     1  1968
       Oklahoma    76  2006    -3  2017
       Okmulgee    71  1954    -2  1912
          Osage    78  1965   -13  2014
         Ottawa    75  1907    -7  1912
         Pawnee    80  1965   -12  2014
          Payne    78  2006    -5  2017
      Pittsburg    76  2008    -3  2017
       Pontotoc    75  1907    -2  2017
   Pottawatomie    75  1965    -3  1912
     Pushmataha    75  2008    -2  1970
    Roger_Mills    78  1965   -12  1912
         Rogers    74  2008    -3  1968
       Seminole    76  1965    -3  2017
       Sequoyah    74  1965     0  1970
       Stephens    75  2008    -3  2017
          Texas    81  2006   -18  1912
        Tillman    80  2006    -4  1940
          Tulsa    77  1965    -2  1968
        Wagoner    75  1907     0  1968
     Washington  -999  -999  -999  -999
        Washita    79  2006    -6  1912
          Woods    80  1965   -14  1912
       Woodward    78  1965   -18  1912