The provided table revealed data about the amount of nuclear power that 7 different countries had in 1965, 1990 and 2005.
Overall, it is immediately apparent from the table that all nations experienced an upward trend over the years, reaching their peak in 1990, with the exception of Germany and Japan, which renounced possession of nuclear warheads. Another interesting feature is that Russia and the USA remained leaders in the amount of atomic weaponry.
To begin, the initial number of nuclear weapons in Russia was just below 200, while in the USA was 378. In 1990, there was a dramatic boom for both countries, counting 4873 and 7534 respectively. However, these indicators moderately declined and Russia ended the period with atomic potential of just under 4000, the USA with about 6980.
Following that, China, France and the UK started the period with relatively the same initial number of atomic weapons, 10, 7 and 15. All three countries experienced a period of volatility. Therefore after an enormous increase, there was a slight fall and the number of warheads stood at 192, 32 and 198 respectively.