what is the best returning index fund in december 2012

ZSL had the highest return in December 2012 by a major index or ETF, returning 21.2%.

ASSET MONTH % RETURN
ZSL
December 2012
21.21%
XPP
December 2012
19.97%
EDC
December 2012
18.97%
TAN
December 2012
17.89%
UBR
December 2012
17.18%
YINN
December 2012
16.15%
GREK
December 2012
14.84%
EET
December 2012
12.64%
KOLD
December 2012
12.38%
CHIX
December 2012
12.28%
EZJ
December 2012
12.26%
EZA
December 2012
12.05%
ECNS
December 2012
11.74%
SLX
December 2012
11.72%
BRF
December 2012
11.44%
DBJP
December 2012
11.42%
EWZS
December 2012
11.26%
DXJ
December 2012
10.77%
YCS
December 2012
10.75%
EGPT
December 2012
10.47%
VIXY
December 2012
10.45%
FAS
December 2012
10.42%
URA
December 2012
10.4%
DRN
December 2012
10.32%
ICLN
December 2012
9.71%