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:
| Aircraft type | National Origin | 1st Flight | In Service | Retired | # built |
| --- | --- | --- | --- | --- | --- |
| Aichi B7A | Japan | 1942.0 | 1944 | 1945 | 114 |
| Airspeed Fleet Shadower | UK | 1940.0 | n/a | n/a | 1 |
| Blackburn Firebrand | UK | 1942.0 | 1944 | 1953 | 225 |
| Boeing XF8B | US | 1944.0 | n/a | n/a | 3 |
| Brewster SB2A Buccaneer | US | 1941.0 | n/a | n/a | 771 |
| Consolidated TBY Sea Wolf | US | 1941.0 | 1944 | 1947 | 180 |
| Curtiss XF14C | US | 1944.0 | n/a | n/a | 1 |
| Curtiss XF15C | US | 1945.0 | n/a | n/a | 3 |
| Curtiss XBT2C | US | 1945.0 | n/a | n/a | 9 |
| Curtiss XBTC | US | 1945.0 | n/a | n/a | 2 |
| de Havilland Sea Hornet | UK | 1944.0 | 1946 | 1956 | 174 |
| de Havilland Sea Mosquito | UK | 1944.0 | 1946 | 1947 | 66 |
| de Havilland Sea Vampire | UK | 1944.0 | 1949 | 1955 | 98 |
| Douglas AD Skyraider | US | 1945.0 | 1946 | 1985 | 3180 |
| Douglas BTD Destroyer | US | 1943.0 | 1944 | 1945 | 30 |
| Douglas XTB2D Skypirate | US | 1945.0 | n/a | n/a | 2 |
| Fairey Barracuda | UK | 1940.0 | 1943 | 1954 | 2582 |
| Fairey Firefly | UK | 1941.0 | 1943 | 1957 | 1702 |
| Fairey Spearfish | UK | 1945.0 | n/a | n/a | 5 |
| General Aircraft Fleet Shadower | UK | 1940.0 | n/a | n/a | 1 |
| Goodyear F2G Corsair | US | 1945.0 | n/a | n/a | 10 |
| Grumman F6F Hellcat | US | 1942.0 | 1943 | 1960 | 12275 |
| Grumman F7F Tigercat | US | 1943.0 | 1944 | 1954 | 364 |
| Grumman F8F Bearcat | US | 1944.0 | 1945 | 1961 | 1265 |
| Grumman TBF Avenger | US | 1941.0 | 1942 | 1960 | 9839 |
| Hawker Sea Fury | UK | 1945.0 | 1945 | 1956 | 864 |
| Hawker Sea Hurricane | UK | 1940.0 | 1940 | 1945 | 1190+ |
| Kaiser-Fleetwings XBTK | US | 1945.0 | n/a | n/a | 5 |
| Martin AM Mauler | US | 1944.0 | 1948 | 1953 | 151 |
| McDonnell FH Phantom | US | 1945.0 | 1947 | 1954 | 62 |
| Mitsubishi A7M | Japan | 1944.0 | n/a | n/a | 10 |
| Nakajima B6N | Japan | 1941.0 | 1943 | 1945 | 1268 |
| Nakajima C6N | Japan | 1943.0 | 1944 | 1945 | 463 |
| North American PBJ-1H | US | 1944.0 | n/a | n/a | 1 |
| Ryan FR Fireball | US | 1944.0 | 1945 | 1947 | 71 |
| Supermarine Seafire | UK | 1942.0 | 1942 | 1951 | 2556 |
| Supermarine Type 322 | UK | 1943.0 | n/a | n/a | 2 |
| Yokosuka D3Y | Japan | 1944.0 | n/a | n/a | 5 |
Question:
How many Airspeed Fleet Shadower aircraft are retired?
Answer:
n/a