1. Not even a script 

$ zcat /var/log/nginx/access.log.*.gz | \
  perl -nE '/ "((?:TLS|SSL)\S+) / && say $1' | \
  sort | uniq -c | sort -rn

1824061 TLSv1.2
  14147 TLSv1
   1988 TLSv1.1