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:
| Number | Name | Year Built | Boat Builder | Current Status |
| --- | --- | --- | --- | --- |
| 1 | Hilbre | 1958 | Williams & Nixon, Deganwy | WKSC-Regularly sailed |
| 2 | Highlight | 1959 | Enterprise Boat Company, Rock Ferry | WKSC-Regularly sailed |
| 3 | Hilary | 1959 | Williams & Nixon, Deganwy | South of Wales |
| 4 | Hioco | 1959 | Enterprise Boat Company, Rock Ferry | WKSC-Regularly sailed |
| 5 | Hirondelle | 1959 | Enterprise Boat Company, Rock Ferry | WKSC-Regularly sailed |
| 6 | Hie | 1959 | Williams & Nixon, Deganwy | WKSC-Regularly sailed |
| 7 | Highwayman | 1959 | Williams & Nixon, Deganwy | WKSC-Regularly sailed |
| 8 | Hiccup | 1959 | Williams & Nixon, Deganwy | WKSC-Regularly sailed |
| 9 | Hiawatha | 1960 | Williams & Nixon, Deganwy | WKSC-Regularly sailed |
| 10 | Hidalgo | 1960 | Enterprise Boat Company, Rock Ferry | Located in Hamburg, Germany |
| 11 | Highlander | 1960 | Enterprise Boat Company, Rock Ferry | Lying in Heswall Boat yard last 10 years, cuddy removed and decking changed to resemble a half rater |
| 12 | Hippo | 1960 | Enterprise Boat Company, Rock Ferry | WKSC |
| 13 | No boat |  |  |  |
| 14 | Hibernia | 1961 | Turner & Son, Donegal | Last heard located at Fiddlers Ferry SC |
| 15 | Hieros | 1961 | Turner & Son, Donegal | Understood to be in a garden in Chester |
| 16 | High & Dry | 1961 | Turner & Son, Donegal | Went down in the Persian gulf after 130 degree temperatures in 1981 |
| 17 | Hilsa | 1961 | Enterprise Boat Company, Rock Ferry | WKSC-Regularly sailed |
| 18 | Hijinx | 1960 | Enterprise Boat Company, Rock Ferry | Abersoch |
| 19 | Hilarity | 1960 | Williams & Nixon, Deganwy | WKSC-Regularly sailed |
| 20 | Hilda | 1960 | Enterprise Boat Company, Rock Ferry | WKSC-Regularly sailed |
| 21 | Highlea | 1960 | Williams & Nixon, Deganwy | Last heard in Polperro |
| 22 | Hijack | 1961 | Turner & Son, Donegal | Set on fire and destroyed in Nevin,in 1995 after a dispute with local fishermen |
| 23 | Hi-Falutin | 1962 | Wirral Boat Co., Rock Ferry | Located at West Cheshire SC |
| 24 | Hibiscus | 1961 | Enterprise Boat Company, Rock Ferry | Sunk when it disappeared from its mooring at Tranmere in 1984 |
| 25 | Hideaway | 1961 | JM Lowther, Whitby | Originally built out of class, subsequently altered and accepted by the Association in 1978. Five similar boats thought to have been built but not classed as Hilbres. Last Heard in West Lancs SC in 1996 |
| 26 | Hispaniola | 1961 | Enterprise Boat Company, Rock Ferry | Last heard of heard in Irvine, Scotland |
| 27 | Hicotee | 1961 | Enterprise Boat Company, Rock Ferry | WKSC-Regularly sailed |
| 28 | Highland Scot | 1961 | Enterprise Boat Company, Rock Ferry | WKSC - Regularly sailed |
| 29 | Hither | 1961 | Enterprise Boat Company, Rock Ferry | WKSC - Regularly sailed |
| 30 | Hiatus | 1961 | Crossfield Successors, Arnside | Last heard of in Barrow in Furness |
| 31 | Hi Sheriff | 1961 | Crossfield Successors, Arnside | WKSC-Regularly sailed |
| 32 | Hiraethog | 1960 | Williams & Nixon, Deganwy | WKSC-Hilbre Association Boat....Undergoing a rebuild by the Association |
| 33 | Hiwmor | 1961 | Crossfield Successors, Arnside | South East England |
| 34 | Hi Fi | 1960 | Crossfield Successors, Arnside | WKSC - Regularly sailed |
| 35 | Hilo | 1961 | Enterprise Boat Company, Rock Ferry | Wrecked when escaped moorings at West Kirby SC |
| 36 | Hinayana | 1961 | Crossfield Successors, Arnside | Poorly repaired in the past and beyond economic repair and subsequently set on fire on bonfire night |
| 37 | Hinden | 1961 | Crossfield Successors, Arnside | Destroyed when put in a skip in Liverpool by over keen repairers who cut three feet off the stern in 1994 |
| 38 | Hinemoa | 1961 | Enterprise Boat Company, Rock Ferry | WKSC - Regularly sailed |
| 39 | Hickory | 1961 | Crossfield Successors, Arnside | Burnt on Bonfire Night |
| 40 | Hirundo | 1961 | Crossfield Successors, Arnside | Broken up and burnt with parts re-used |
| 41 | Highcrest | 1961 | Crossfield Successors, Arnside | Wrecked when came off its moorings at West Kirby SC |
| 42 | Hindu Honey | 1962 | Crossfield Successors, Arnside | Destroyed/sank in North Wales with parts made available to the Hilbre Association |
| 43 | Hildebrand | 1962 | Crossfield Successors, Arnside | Last heard in Northumberland |
| 44 | Hibrena | 1961 | Crossfield Successors, Arnside | Cut up and burnt in 2002 and parts salvaged for use by the Association |
| 45 | Hifactum | 1962 | Enterprise Boat Company, Rock Ferry | Lying in a garden in the Irby, Wirral |
| 46 | Hi C | 1962 | Enterprise Boat Company, Rock Ferry | Hilbre Association boat requiring extensive work |
| 47 | Highland Piper | 1961 | William Partington Marine, Pwhelli | WKSC-Regularly sailed |
| 48 | Hi Di Hi | 1961 | Crossfield Successors, Arnside | Damaged beyond repair and burnt on bonfire night 2011 at WKSC |
| 49 | Higgler | 1961 | Crossfield Successors, Arnside | Last heard of in Polperro |
| 50 | Heulwen | 1962 | Wirral Boat Co., Rock Ferry | Porthmadog |
| 51 | Hiatus | 1962 | Wirral Boat Co., Rock Ferry | WKSC - |
| 52 | Hikari | 1963 | Crossfield Successors, Arnside | Converted to fishing boat, although understood now to be destroyed and burnt |
| 53 | High Hat | 1963 | William Partington Marine, Pwhelli | WKSC-Regularly sailed |
| 54 | Hinon | 1964 | Crossfield Successors, Arnside | Lying in a garden in Buckley, in a poor condition |
| 55 | Hiriver | 1964 | Anglesey Boat Co., Beaumaris | Sunk in the river Mersey, when swamped by the Isle of Man Ferry in 1970 |
| 56 | Hipparchus | 1966 | Anglesey Boat Co., Beaumaris | Liverpool Maritime Museum |
Question:
what is the number of keelboats built between 1958-1962?
Answer:
51