Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Navy | Name | Pennant | Commissioned | Home port |
| --- | --- | --- | --- | --- |
| Royal Navy | Brecon | M29 | 1980.0 | HMS Raleigh |
| Royal Navy | Ledbury | M30 | 1981.0 | Portsmouth |
| Royal Navy | Cattistock | M31 | 1982.0 | Portsmouth |
| Royal Navy | Cottesmore | M32 | 1983.0 | Portsmouth |
| Royal Navy | Brocklesby | M33 | 1982.0 | Portsmouth |
| Royal Navy | Middleton | M34 | 1984.0 | Portsmouth |
| Royal Navy | Dulverton | M35 | 1983.0 | Portsmouth |
| Royal Navy | Bicester | M36 | 1988.0 | Portsmouth |
| Royal Navy | Chiddingfold | M37 | 1984.0 | Portsmouth |
| Royal Navy | Atherstone | M38 | 1986.0 | Portsmouth |
| Royal Navy | Hurworth | M39 | 1985.0 | Portsmouth |
| Royal Navy | Berkeley | M40 | 1986.0 | Portsmouth |
| Royal Navy | Quorn | M41 | 1989.0 | Portsmouth |
| Hellenic Navy | Europa | M62 | 2001.0 | Salamis |
| Hellenic Navy | Kallisto | M63 | 2000.0 | Salamis |
| Lithuanian Naval Force | Skalvis | M53 | 2011.0 | Klaipėda |
| Lithuanian Naval Force | Kuršis | M51 | 2011.0 | Klaipėda |
Question:
What is the navy for middleton with a home port of portsmouth after 1983?
Answer:
Royal Navy