Ya the majority of the dimes I have are 60-64 as well I would say.
Here's what the #'s say
Total rosies 1946 to 1964 = 6,595,617,673
Total 1964 + 1964 D = 2,286,877,180
Total 1946 to 1963 = 4,308,740,493
So the 1964's were 34.67% of the entire run of silver rosies from 1946 - 1964
Total 1960 to 1964 = 3,812,829,040
Total 1946 to 1959 = 2,782,788,633
1960 to 1964 represents 57.81% of the entire run of silver rosies from 1946 to 1964
[h=3]Roosevelt Dime Mintages[/h][TABLE="width: 232"]
[TR]
[TD="width: 191"]1946[/TD]
[TD="width: 118, align: right"]255,250,000[/TD]
[/TR]
[TR]
[TD]1946-D[/TD]
[TD="width: 118, align: right"]61,043,500[/TD]
[/TR]
[TR]
[TD]1946-S[/TD]
[TD="width: 118, align: right"]27,900,000[/TD]
[/TR]
[TR]
[TD]1947[/TD]
[TD="width: 118, align: right"]121,520,000[/TD]
[/TR]
[TR]
[TD]1947-D[/TD]
[TD="width: 118, align: right"]46,835,000[/TD]
[/TR]
[TR]
[TD]1947-S[/TD]
[TD="width: 118, align: right"]34,840,000[/TD]
[/TR]
[TR]
[TD]1948[/TD]
[TD="width: 118, align: right"]74,950,000[/TD]
[/TR]
[TR]
[TD]1948-D[/TD]
[TD="width: 118, align: right"]52,841,000[/TD]
[/TR]
[TR]
[TD]1948-S[/TD]
[TD="width: 118, align: right"]35,520,000[/TD]
[/TR]
[TR]
[TD]1949[/TD]
[TD="width: 118, align: right"]30,940,000[/TD]
[/TR]
[TR]
[TD]1949-D[/TD]
[TD="width: 118, align: right"]26,034,000[/TD]
[/TR]
[TR]
[TD]1949-S[/TD]
[TD="width: 118, align: right"]13,510,000[/TD]
[/TR]
[TR]
[TD]1950[/TD]
[TD="width: 118, align: right"]50,130,114[/TD]
[/TR]
[TR]
[TD]1950-D[/TD]
[TD="width: 118, align: right"]46,803,000[/TD]
[/TR]
[TR]
[TD]1950-S[/TD]
[TD="width: 118, align: right"]20,440,000[/TD]
[/TR]
[TR]
[TD]1951[/TD]
[TD="width: 118, align: right"]103,880,102[/TD]
[/TR]
[TR]
[TD]1951-D[/TD]
[TD="width: 118, align: right"]56,529,000[/TD]
[/TR]
[TR]
[TD]1951-S[/TD]
[TD="width: 118, align: right"]31,630,000[/TD]
[/TR]
[TR]
[TD]1952[/TD]
[TD="width: 118, align: right"]99,040,093[/TD]
[/TR]
[TR]
[TD]1952-D[/TD]
[TD="width: 118, align: right"]122,100,000[/TD]
[/TR]
[TR]
[TD]1952-S[/TD]
[TD="width: 118, align: right"]44,419,500[/TD]
[/TR]
[TR]
[TD]1953[/TD]
[TD="width: 118, align: right"]53,490,120[/TD]
[/TR]
[TR]
[TD]1953-D[/TD]
[TD="width: 118, align: right"]136,433,000[/TD]
[/TR]
[TR]
[TD]1953-S[/TD]
[TD="width: 118, align: right"]39,180,000[/TD]
[/TR]
[TR]
[TD]1954[/TD]
[TD="width: 118, align: right"]114,010,203[/TD]
[/TR]
[TR]
[TD]1954-D[/TD]
[TD="width: 118, align: right"]106,397,000[/TD]
[/TR]
[TR]
[TD]1954-S[/TD]
[TD="width: 118, align: right"]22,860,000[/TD]
[/TR]
[TR]
[TD]1955[/TD]
[TD="width: 118, align: right"]12,450,181[/TD]
[/TR]
[TR]
[TD]1955-D[/TD]
[TD="width: 118, align: right"]13,959,000[/TD]
[/TR]
[TR]
[TD]1955-S[/TD]
[TD="width: 118, align: right"]18,510,000[/TD]
[/TR]
[TR]
[TD]1956[/TD]
[TD="width: 118, align: right"]108,640,000[/TD]
[/TR]
[TR]
[TD]1956-D[/TD]
[TD="width: 118, align: right"]108,015,100[/TD]
[/TR]
[TR]
[TD]1957[/TD]
[TD="width: 118, align: right"]160,160,000[/TD]
[/TR]
[TR]
[TD]1957-D[/TD]
[TD="width: 118, align: right"]113,354,330[/TD]
[/TR]
[TR]
[TD]1958[/TD]
[TD="width: 118, align: right"]31,910,000[/TD]
[/TR]
[TR]
[TD]1958-D[/TD]
[TD="width: 118, align: right"]136,564,600[/TD]
[/TR]
[TR]
[TD]1959[/TD]
[TD="width: 118, align: right"]85,780,000[/TD]
[/TR]
[TR]
[TD]1959-D[/TD]
[TD="width: 118, align: right"]164,919,790[/TD]
[/TR]
[TR]
[TD]1960[/TD]
[TD="width: 118, align: right"]70,390,000[/TD]
[/TR]
[TR]
[TD]1960-D[/TD]
[TD="width: 118, align: right"]200,160,400[/TD]
[/TR]
[TR]
[TD]1961[/TD]
[TD="width: 118, align: right"]93,730,000[/TD]
[/TR]
[TR]
[TD]1961-D[/TD]
[TD="width: 118, align: right"]209,146,550[/TD]
[/TR]
[TR]
[TD]1962[/TD]
[TD="width: 118, align: right"]72,450,000[/TD]
[/TR]
[TR]
[TD]1962-D[/TD]
[TD="width: 118, align: right"]334,948,380[/TD]
[/TR]
[TR]
[TD]1963[/TD]
[TD="width: 118, align: right"]123,650,000[/TD]
[/TR]
[TR]
[TD]1963-D[/TD]
[TD="width: 118, align: right"]421,476,530[/TD]
[/TR]
[TR]
[TD]1964[/TD]
[TD="width: 118, align: right"]929,360,000[/TD]
[/TR]
[TR]
[TD]1964-D[/TD]
[TD="width: 118, align: right"]1,357,517,180[/TD]
[/TR]
[/TABLE]