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From Nonproliferation data site.

US - blue
Russia - purple
| US | Russia | |
| 1945 | 1 | |
| 1946 | 3 | 1 |
| 1947 | 5 | 2 |
| 1948 | 7 | 3 |
| 1949 | 9 | 4 |
| 1950 | 10 | 5 |
| 1951 | 40 | 15 |
| 1952 | 80 | 35 |
| 1953 | 200 | 65 |
| 1954 | 600 | 85 |
| 1955 | 2000 | 1000 |
| 1956 | 5000 | 1200 |
| 1957 | 8000 | 1400 |
| 1958 | 12000 | 1600 |
| 1959 | 15000 | 1800 |
| 1960 | 19000 | 2000 |
| 1961 | 22000 | 3000 |
| 1962 | 24000 | 4000 |
| 1963 | 26000 | 5000 |
| 1964 | 28000 | 6000 |
| 1965 | 32000 | 7000 |
| 1966 | 31000 | 8000 |
| 1967 | 30000 | 9000 |
| 1968 | 29000 | 10000 |
| 1969 | 28500 | 10000 |
| 1970 | 28000 | 12000 |
| 1971 | 28050 | 14500 |
| 1972 | 28100 | 16000 |
| 1973 | 28300 | 19000 |
| 1974 | 28600 | 21000 |
| 1975 | 29000 | 23000 |
| 1976 | 28000 | 24500 |
| 1977 | 27000 | 27000 |
| 1978 | 26000 | 30000 |
| 1979 | 25000 | 34000 |
| 1980 | 24000 | 37000 |
| 1981 | 23900 | 38500 |
| 1982 | 23700 | 40000 |
| 1983 | 23500 | 41000 |
| 1984 | 23200 | 42000 |
| 1985 | 23000 | 43000 |
| 1986 | 22000 | 42000 |
| 1987 | 21500 | 41000 |
| 1988 | 21000 | 40000 |
| 1989 | 20500 | 39000 |
| 1990 | 20000 | 38000 |
| 1991 | 19000 | 36000 |
| 1992 | 18000 | 34000 |
| 1993 | 17000 | 32000 |
| 1994 | 15000 | 28000 |
| 1995 | 13000 | 24000 |
| 1996 | 11000 | 20000 |
| 1997 | 9000 | 16000 |
| 1998 | 7000 | 12000 |
| 1999 | 5000 | 8000 |
| 2000 | 3500 | 3500 |
| 2001 | 2500 | 2500 |
| 2002 | 1500 | 1500 |
| 2003 | 500 | 500 |