42 ARL University Libraries Table 21: Number and Average Years of Experience of Professional Staff in ARL University Libraries by Position and Sex, Specialist Breakdown, FY 2015–2016 Women Men Total Position Years No. Years No. Years No. Catalogers/Metadata analysts 18.7 415 18.9 192 18.8 607 Research/Reference/Instruction 14.5 599 16.6 205 15.1 804 Public Services 14.3 151 14.7 71 14.4 222 Technical Services 17.0 87 13.5 38 15.9 125 All Positions: 17.3 5,305 17.3 3,243 17.3 8,548 Excludes medical and law libraries. See Tables 55 and 65 for comparable figures for medical and law libraries.