Year DesMoines SanFrancisco 1995 56.0 51.0 1996 37.5 55.3 1997 37.2 55.7 1998 56.0 48.7 1999 54.3 56.2 2000 63.3 57.2 2001 54.7 49.5 2002 60.6 61.0 2003 70.6 51.4 2004 53.7 55.8 2005 52.9 53.0 2006 74.9 58.1 2007 44.4 54.2 2008 40.3 53.4 2009 44.4 49.9 2010 71.0 53.8 2011 56.8 51.4 2012 59.2 52.3 2013 53.3 52.1 2014 35.7 57.3 2015 56.2 55.8 2016 60.2 56.9 2017 67.8 53.6 2018 41.3 58.4 2019 41.0 54.2