Jochen,
my results:
Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (SSE4)
10 valid tests, 158126 avg kCycles
8 valid tests, 158434 avg kCycles
8 valid tests, 158700 avg kCycles
9 valid tests, 158526 avg kCycles
5 valid tests, 158665 avg kCycles
10 valid tests, 137386 avg kCycles
8 valid tests, 158749 avg kCycles
8 valid tests, 158870 avg kCycles
9 valid tests, 158754 avg kCycles
8 valid tests, 158651 avg kCycles
ok
Gunther