None, Roosevelt dimes replaced the Mercury dimes in1946
It appears as though there were 620,684 silver Roosevelt Dimes minted in 2008. All of these silver dimes are proof and available only in the 2008 Silver Proof set.
Dimes minted in 1965 and later weigh 1/8 of an ounce, so get out your calculator and go with it.
None, zero, no dimes were produced in 1922, 1932 or 1933
Total production of 2010 U.S. dimes was 1,120,689,364 this includes clad & silver proof coins.
13.8
they made 2 million 1916 d dimes oh and that dime is called a mercury dime ONLY 264,000 1916-D Mercury Dimes were struck.
A mercury dime contains 0.0723 troy ounces of silver. You would need 13.83 mercury dimes to get 1 troy ounce of Silver.
Philadelphia 1,034,340,00 Denver 839,995,824 San Francisco 3,299,559
Mintage of 1902 Barber dimes: Proof 777/ Philadelphia 21,380,000/ New Orleans 4,500,000/ San Francisco 2,070,000
Mercury dimes were made from 1916 to 1945 so ALL of them are pre-1964. You can find values at many sites, such as the one linked below.
1951 Roosevelt Dime Data: 1951P102,937,602 Proof 57,500 1951D56,529,0001951S 31,630,000