That's 1992-94 info. Like others have posted, who knows what actually happened. The US taxpayers paid for the 'official' destruction of Ukraine's nukes, but
this article from last April disclosed some really crappy record-keeping:
It's probable that the military will have to answer a series of unpleasant questions. For example, how did it occur that the officially "liquidated" RS-18 (NATO SS-19 "Stilleto") which were destroyed or removed from the territory of the Ukraine in 1999, three years later turned out to still have 31 examples sitting in silos and warehouses? Or: what happened to those 230 "extra" nuclear warheads which - according to information from the general headquarters of the Ukrainian armed forces - existed, but - according to a declaration by the MoD - suddenly did not exist? The fact of the matter is, that the MoD reported on the transfer or destruction by the Ukraine of 3772 nuclear warheads, while the general staff reported that there were more than 4000. This "miscalculation" (for want of a stronger term) either occurred during the time of General/People's Deputy Kuz'muk's reign at the ministry of defense, or the conflicting data was published during his term. It's highly likely that until the end of 2000 the Ukrainian ministry of defense "increased" its supply of nuclear warheads by 25% in order to receive a corresponding increase in active international financing and aid in removing these weapons.
There probably weren't any loose nukes, just a bit of chicanery to inflate their foreign aid request. We hope ;-)