Roberto Mtz has seen concerts during 17 years.

Year   Concerts Seen  
2018 5 concerts
2016 14 concerts
2015 14 concerts
2014 6 concerts
2013 9 concerts
2012 6 concerts
2011 7 concerts
2010 7 concerts
2009 5 concerts
2008 7 concerts
2007 12 concerts
2006 9 concerts
2005 11 concerts
2004 8 concerts
2003 4 concerts
2002 2 concerts
1999 1 concert