Create A Variable Type TABLE

I€™ve got some tables with the year is part of the name, for example: TABLE2006, TABLE2007, etc.. . The year of the name of table I will read in the table INSERTED of my Trigger : I nead to create a trigger where I update those tables :
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE TRIGGER [TESTE]
ON [dbo].[TABTESTE]
FOR INSERT
AS
DECLARE
@YearTable nvarchar(4),
@IdClient INT,
@MyTable TABLE
(
IdClient INT,
Situ NVARCHAR(50)
)
BEGIN
SET NOCOUNT ON;
SELECT @YearTable = SITUACAO, @IdClient = IdClient FROM INSERTED
SET @MyTable = 'TABLE' & @YearTable
UPDATE @MyTable
SET
Situ = 'X'
WHERE IdClient = @IdClient
END
GO
Erros:
Msg 156, Level 15, State 1, Procedure TESTE, Line 9
Incorrect syntax near the keyword 'TABLE'.
Msg 137, Level 15, State 1, Procedure TESTE, Line 17
Must declare the scalar variable "@MyTable".
Msg 1087, Level 15, State 2, Procedure TESTE, Line 18
Must declare the table variable "@MyTable".