What is the most common dog name in 2017, and how many times was it used?

What is the most common dog name in 2017, and how many times was it used?: a task in SmolDataEnvs-harbor-train (Harbor dataset). Files (in /home/user/input, no subfolders): - 2007.csv - 2008.csv - 2009.csv - 2010.csv - 2011.csv - 2012.csv - 2013.csv - 2014.csv - 2015.csv - 2016.csv - 2017.csv