footnote_code footnote_text 0 The estimate was less than the minimum value able to be displayed 1 Less than 0.5 2 Less than 0.05 3 Less than 0.005 4 Rounded to the nearest 500. A Employee contribution type of Other estimates from March 2014 forward includes contribution types not separately published such as composite rates, flexible benefits, and percent of earnings. B Registered Nurses estimates from March 2014 forward are based on the 2010 Standard Occupational Classification. For more information on classification changes, please see www.bls.gov/soc.