The US unemployment rate over the 12-year period is given. Use the data to construct a time series chrt in excel
year 1998 1999 2000 2001 2002 2003
unemployment rate 4.5 4.2 4.0 4.7 5.8 6.0
year 2004 2005 2006 2007 2008 2009
unemployment rate 5.5 5.1 4.6 4.6 5.8 9.3