wdt_ID	Series	Years: From	Years: To	Number of Countries	Unit	Industry Classification	Number of Goods
1	Persons employed	1950	2005	19	N	1-digit ISIC rev.2	10
2	Value added	1950	2005	19	Constant	1-digit ISIC rev.2	10
3	Value added	1950	2005	19	Current	1-digit ISIC rev.2	10