WEIGHTS OF HEAVYWEIGHT CHALLENGERS OVER THE YEARS.
-EACH POINT ON THE GRAF REPRESENTS 10 YEARS OF CHALLENGERS' WEIGHTS, EXCEPT 1900. 1900 INCLUDES 1885 THRU 1900
'a' = AVERAGE. 'm' = MEAN. 'x' = a & m THE SAME.
1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000
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230 ------------------------------------------------------------------------------------------------xaxaxaa--- 230
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210 ---------------------------------------------------------------------------aaaaa-------------------------- 210
------------------mx-------------aaaaaa--aaaaaaaaaa----------------xxxxxxxx-------------------------------
200 --------------------a----------------m-aamm--mm-m--a------------aax--------------------------------------- 200
-----------------aa-maxxa------axmmmm-mmm--mm--m-mmm-------xmxxxmm----------------------------------------
190 ---------------axm---m--maaxxxxm--------------------xxxxxxx-a--------------------------------------------- 190
-a-xxxxxxxxxxxxm---------mm-------------------------------------------------------------------------------
180 xmx------------------------------------------------------------------------------------------------------- 180
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