Kellogg's Card Set Questions

In an effort to keep my brain going at home I came up with the following questions about Kellogg's cards.  See if you can answer them without looking them up.  Only one came to mind when I did this and it was correct for one of these.

1.  Which Kellogg's set has the most players that are also featured in another year (1970 to 1983)?

2.  Which Kellogg's set has the least number of players that were featured in another set?

3.  Since the number of cards varied in the sets, which sets featured the highest and lowest percentage of players that were also featured in another set?

4.  Do the sets with more repeats make them better in your opinion?  Do you prefer the sets with more players who appear in only one set?


Here is what I came up with for these sets.

Year	# repeats	# in Set
1981	57	66
1970	55	75
1980	53	60
1982	53	64
1971	52	75
1973	49	54
1975	47	57
1979	47	60
1983	47	60
1976	46	57
1978	46	57
1972	45	54
1974	41	54
1977	41	57