 Complete the following phrase:  The twenty areas of responsibility devolved to the Welsh Government, known as subjects, include agriculture, economic development, education, health, housing, local government, social services, tourism, transport and the Welsh language. On its creation in 1999, the National Assembly for Wales had no primary legislative powers. In 2007, following passage of the Government of Wales Act 2006 GoWA 2006, the assembly developed powers to pass primary legislation known at the time as Assembly Measures on some specific matters within the areas of devolved responsibility. Further matters have been added subsequently, either directly by the UK Parliament or by the UK Parliament approving a Legislative Competence Order LCO, a request from the assembly for additional powers. The GoWA 2006 allows for the Senedd to gain primary lawmaking powers on a more extensive range of matters within the same devolved areas if approved in a referendum. A 