Assertion: custom | /r/CapableOf | keep the staffing levels
Facets:
value: since 1999
type: TEMPORAL
Source sentences:
text: For example, enhancements made to Japan Customs' risk assessment capabilities since 1999 helped Customs keep the staffing levels nearly unchanged since 1999, while the number of import transactions increased by almost 60 % (2007) and exports transactions increased by around 50% (2007) - see also chart: