United States
Avg Goals
2024
29 teams
2023
29 teams
2022
28 teams
2021
27 teams
2020
26 teams
2019
24 teams
2018
23 teams
2017
22 teams
2016
20 teams
2015
20 teams
2014
19 teams
2013
19 teams
2012
19 teams
2011
18 teams
2010
16 teams
2009
15 teams
2008
14 teams
2007
13 teams
2006
12 teams
2005
12 teams
2004
10 teams
2003
10 teams