Historical chart of Gulf Cup of Nations goals stats (1970-2014)

All-time goal records by Tournaments:

Reference 1: Goals Scored and Goals per Game.

Reference 2: 1970, 1972, 1974, 1976, 1979, 1982, 1984, 1986, 1988, 1990, 1992, 1994, 1996, 1998, 2002, 2003, 2004, 2007, 2009, 2010, 2013 and 2014.

Source: http://en.wikipedia.org/wiki/Gulf_Cup_of_Nations