4. What was the least number of GSD's in the top ten for any year?

1989, the last year, was undoubtedly the worst showing. There were only 2 GSD's in the top ten.

Seigo v. Wetterberg

SG7 98/93.5/90=281.5

Bodo v Frankenhainer Eck

SG9 97/88/94=279