Olympics	Country	Golds	Silvers	Bronzes
2010 Winter	Estonia	0	1	0
2010 Winter	Kazakhstan	0	1	0
2008 Summer	Bahamas	0	1	1
2008 Summer	Malaysia	0	1	0
2008 Summer	South Africa	0	1	0
2008 Summer	Sudan	0	1	0
2006 Winter	Slovakia	0	1	0
2002 Winter	Great Britain	1	0	1

...and so on. With enough data, you can spot the pattern: in every case, the number of gold medals won equals the number of "G"s in the name of the nation, and the same is true for "S"s and silver medals, and for "B"s and bronze medals. (It's not strictly clear from this data set that having, say, two "B"s in a name means winning two bronze medals, but it makes sense.) Apply these rules to the new list of nations. Note that it doesn't matter that we're looking at the 2012 Summer games, because the system only cares about the name of the nation. We end up with a bunch of 0s, 1s, and 2s, which turn into letters via trinary in the usual puzzlehunt way.

Country	Golds	Silvers	Bronzes	Base 10	Letter
BanGladeSh	1	1	1	13	M
BarBadoS	0	1	2	5	E
BoSnia and HerzeGovina	1	1	1	13	M
Saint Vincent and the GrenadineS	1	2	0	15	O
GeorGia	2	0	0	18	R
CamBodia	0	0	1	1	A
ZimBaBwe	0	0	2	2	B
TonGa	1	0	0	9	I
KyrGyzStan	1	1	0	12	L
UGanda	1	0	0	9	I
AzerBaijan	0	0	1	1	A

So the answer is MEMORABILIA.