The file Movie Attendance contains the yearly movie attendance (in billions) from 2001 through 2012:
Year _________Attendance (billions)
2001 ............................... 1.44
2002 ............................... 1.58
2003 ............................... 1.55
2004 ............................... 1.49
2005 ............................... 1.40
2006 ............................... 1.41
2007 ............................... 1.40
2008 ............................... 1.39
2009 ............................... 1.42
2010 ............................... 1.33
2011 ............................... 1.30
2012 ............................... 1.37
Source: Data extracted from the-numbers.com/market.
a. Construct a time-series plot for the movie attendance (in billions).
b. What pattern, if any, is present in the data?