YearRate
2022$27,700
2021$27,300
2020$26,400
2019$25,400
2018$24,700
2017$25,400
2016$25,500
2015$24,700
2014$24,500
2013$23,800
2012$23,000
2011$22,300
2010$22,800
2009$21,500
2008$20,100
2007$18,100
2006$17,100
2005$16,400
2004$15,900
2003$14,700
2002$14,700