get the Last and penultimate Data - vb. net and SQL

Question

Hello, friends. I need your help. I'm programming in vb.net and I'd like to get the Last and the penultimate data Array among many data. E.g. Luis Figo.  Note: I don't want to especify the value (7 ou 9). Actually the last is easy, I use: "select max(idConsumo) as idCon from tblClient where idClient = '" & idC & "' "

 

idClient	idConsumo	Name
5	2	Luis Figo
2	3	Paudio Paulo
4	4	Joao Pinto
1	5	Celsa Pambo
4	6	Joao Pinto
5	7	Luis Figo
2	8	Paudio Paulo
5	9	Luis Figo

 

Please HELP!