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:
| Ship's name | Entered service | Ended service | Gross Tonnage | Type of Vessel |
| --- | --- | --- | --- | --- |
| Avalon | 13 June 1864 | 1866 | 613.0 | Paddle steamer |
| Zealous | 1 August 1864 | 1887 | 613.0 | Paddle steamer |
| Harwich | 1864 | October 1907 | 750.0 | Paddle steamer |
| Rotterdam | 1864 | 1908 | 757.0 | Paddle steamer |
| Avalon | 1865 | Before 1906 | 670.0 | Paddle steamer |
| Ravensbury | 1865 | Wrecked 5 March 1870 | 621.0 | Paddle steamer |
| Great Yarmouth | 1866 | 1872 | 731.0 | Single Screw Steamer |
| Richard Young | March 1871 | 1890 | 718.0 | Paddle Steamer |
| Pacific | 1872 | 1887 | 712.0 | Paddle Steamer |
| Claud Hamilton | 14 August 1875 | 1897 | 962.0 | Paddle Steamer |
| Princess of Wales | 6 July 1878 | 1894 | 1098.0 | Paddle Steamer |
| Lady Tyler | 29 May 1880 | 1893 | 951.0 | Paddle Steamer |
| Adelaide | 23 July 1880 | 1896 | 927.0 | Paddle Steamer |
| Norwich | 24 July 1883 | 1911 | 1037.0 | Twin Screw Steamer |
| Ipswich | 23 October 1883 | 1905 | 1037.0 | Twin Screw Steamer |
| Cambridge | 12 February 1887 | 25 November 1912 | 1160.0 | Twin Screw Steamer |
| Colchester | 27 February 1889 | 8 March 1916 | 1160.0 | Twin Screw Steamer |
| Chelmsford | 31 May 1893 | June 1910 | 1635.0 | Twin Screw Steamer |
| Berlin | 10 January 1894 | Wrecked 21 February 1907 | 1745.0 | Twin Screw Steamer |
| Amsterdam | 9 May 1894 | December 1928 | 1745.0 | Twin Screw Steamer |
| Vienna | 11 October 1894 | 23 March 1930 | 1753.0 | Twin Screw Steamer |
| Dresden | 29 June 1897 | 20 January 1918 Sunk by UC 22 | 1805.0 | Twin Screw Steamer |
| Cromer | 22 April 1902 | 30 August 1934 | 812.0 | Twin Screw Cargo Steamer |
| Brussels | 19 June 1902 | 23 June 1916 Captured | 1380.0 | Twin Screw Steamer |
| Yarmouth | 1903 | 27 October 1908 Lost at sea | 806.0 | Twin Screw Cargo Steamer |
| Clacton | 7 February 1905 | 7 October 1914 Requisitioned | 820.0 | Twin Screw Cargo Steamer |
| Newmarket | August 1907 | 8 October 1914 Requisitioned | 833.0 | Twin Screw Cargo Steamer |
| Copenhagen | 27 January 1907 | October 1914 Requisitioned | 2570.0 | Triple Screw Steamer |
| Munich | 16 November 1908 | 10 May 1940 Ship Scuttled | 2410.0 | Triple Screw Steamer |
| St Petersburg | 7 July 1910 | 10 December 1939 Requisitioned | 2448.0 | Triple Screw Steamer |
| Felixstowe | April 1919 | 10 February 1951 | 892.0 | Single Screw Cargo Steamer |
| Frinton | 6 November 1919 | 19 July 1929 | 1361.0 | Single Screw Steamer |
| St George | June 1919 | 16 July 1929 | 2676.0 | Triple Screw Steamer |
| Antwerp | June 1920 | 1 May 1950 | 2957.0 | Twin Screw Steamer |
| Bruges | 27 September 1920 | 9 September 1940 Requisitioned | 2949.0 | Twin Screw Steamer |
| Malines | 17 March 1921 | 10 May 1940 | 2969.0 | Twin Screw Steamer |
Question:
Tell me the average gross tonnage for april 1919 entered service
Answer:
892.0