Tuple-like constructors

[Marcin 'Qrczak' Kowalczyk]

In my language Kogut there are only pairs, and larger tuples are
expressed by nested pairs (biased in the same direction as lists,
without an end marker of course).

I wonder whether the performance difference is really that
significant. Short tuples seem to be much more common. Anyone could
gather statistics about runtime usage of tuples of varying sizes?

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak at knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/