 Complete the following phrase:  The only editions not to have at least one hat-trick scored were 1916, 1917, 1920, 1921, 1922, 1937, 1956, 1979, 1983, 1989, 1991, 1993, 1995, 1997, 1999, 2001 and 2019. The record number of hat-tricks in a single Copa América tournament is five, which occurred in each of the 1926, 