By how many percentage points did the popularity of Labrador Retrievers decrease from 2008 to 2009?

By how many percentage points did the popularity of Labrador Retrievers decrease from 2008 to 2009?: a task in data-agent-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 -…