1947 is the first year for Mint Sets.
No they do not, neither do 1984 Proof sets. The COA's for Proof Sets start in 1986.
1990
Buy one of each. Proof sets will always have less total numbers. But, sometimes the uncirculated coins outperform them in the long run.
No silver Proof sets were issued in the years given in this question. Proof Prestige sets were issued in 1986-1990 that have current retail values of $36.00. The standard proof sets are $6.00 each.
There are a number of online stores that sell proof sets. The web domains "LittleTonCoin" and "GoldenEagleCoin," for example, are known to sell these sets.
You can bring them to a coin dealer but you will get more selling them on EBay. Most sets are not very valuable. you can easily Google the year and get the value.
1,247,952 sets were made.
The only Kennedy half-dollars after 1971 to have any silver are in Bicentennial (40%) silver Proof and Unciculated sets sold from the Mint. In 1992 the Mint started making "Silver Proof" sets again with 90% silver coins.
To begin with, there are Mint sets and Proof sets, and they're 2 different things. You'll need to check your set to determine which kind you have. Mint sets are sets of uncirculated coins selected from normal strikes. These retail for about $15 to $20. Proof sets are specially-struck coins that have mirrorlike surfaces and matte-finish images. 1995 proof sets sell at a fairly decent premium - cupronickel sets retail for $35 to $45, and silver sets are in the $80 to $90 range.
1936 is the year the mint started producing proof sets annually for public sale
No silver coins were included in the 1973 Proof sets.