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:
| Name of President | Picture | Life span | Year of Presidency | Place of Conference |
| --- | --- | --- | --- | --- |
| Womesh Chunder Bonnerjee |  | 29 December 1844 – 1906 | 1885 | Bombay |
| Dadabhai Naoroji |  | 4 September 1825 – 1917 | 1886 | Calcutta |
| Badruddin Tyabji |  | 10 October 1844 – 1906 | 1887 | Madras |
| George Yule |  | 1829–1892 | 1888 | Allahabad |
| William Wedderburn |  | 1838–1918 | 1889 | Bombay |
| Pherozeshah Mehta | 75px | 4 August 1845 – 1915 | 1890 | Calcutta |
| Anandacharlu |  | August 1843– 1908 | 1891 | Nagpur |
| Womesh Chunder Bonnerjee |  | 29 December 1844 – 1906 | 1892 | Allahabad |
| Dadabhai Naoroji |  | 4 September 1848 – 1925 | 1893 | Lahore |
| Alfred Webb |  | 1834–1908 | 1894 | Madras |
| Surendranath Banerjee |  | 10 November 1848 – 1925 | 1895 | Poona |
| Rahimtulla M. Sayani |  | 5 April 1847 – 1902 | 1896 | Calcutta |
| C. Sankaran Nair |  | 11 July 1857 – 1934 | 1897 | Amraoti |
| Anandamohan Bose |  | 23 September 1847 – 1906 | 1898 | Madras |
| Romesh Chunder Dutt |  | 13 August 1848 – 1909 | 1899 | Lucknow |
| N. G. Chandavarkar |  | 2 December 1855 – 1923 | 1900 | Lahore |
| Dinshaw Edulji Wacha |  | 2 August 1844 – 1936 | 1901 | Calcutta |
| Surendranath Banerjee |  | 10 November 1825 – 1917 | 1902 | Ahmedabad |
| Lalmohan Ghosh |  | 1848–1909 | 1903 | Madras |
| Henry Cotton |  | 1845–1915 | 1904 | Bombay |
| Gopal Krishna Gokhale |  | 9 May 1866 – 1915 | 1905 | Benares |
| Dadabhai Naoroji |  | 4 September 1825 – 1917 | 1906 | Calcutta |
| Rashbihari Ghosh |  | 23 December 1845 – 1921 | 1907 | Surat |
| Rashbihari Ghosh |  | 23 December 1845 – 1921 | 1908 | Madras |
| Madan Mohan Malaviya |  | 25 December 1861 – 1946 | 1909 | Lahore |
| William Wedderburn |  | 1838–1918 | 1910 | Allahabad |
| Bishan Narayan Dar |  | 1864–1916 | 1911 | Calcutta |
| Raghunath Narasinha Mudholkar |  | 1857–1921 | 1912 | Bankipur |
| Nawab Syed Muhammad Bahadur |  | ?- 1919 | 1913 | Karachi |
| Bhupendra Nath Bose |  | 1859–1924 | 1914 | Madras |
| Lord Satyendra Prasanna Sinha |  | March 1863– 1928 | 1915 | Bombay |
| Ambica Charan Mazumdar |  | 1850–1922 | 1916 | Lucknow |
| Annie Besant |  | 1 October 1847 – 1933 | 1917 | Calcutta |
| Madan Mohan Malaviya |  | 25 December 1861 – 1946 | 1918 | Delhi |
| Syed Hasan Imam |  | 31 August 1871 – 1933 | 1918 | Bombay (Special Session) |
| Motilal Nehru |  | 6 May 1861– 6 February 1931 | 1919 | Amritsar |
| Lala Lajpat Rai |  | 28 January 1865– 17 November 1928 | 1920 | Calcutta (Special Session) |
| C. Vijayaraghavachariar |  | 1852– 19 April 1944 | 1920 | Nagpur |
| Hakim Ajmal Khan |  | 1863– 29 December 1927 | 1921 | Ahmedabad |
| Deshbandhu Chittaranjan Das |  | 5 November 1870– 16 June 1925 | 1922 | Gaya |
| Mohammad Ali Jouhar |  | 10 December 1878– 4 January 1931 | 1923 | Kakinada |
| Abul Kalam Azad |  | 1888– 22 February 1958 | 1923 | Delhi (Special Session) |
| Mohandas Gandhi |  | 2 October 1869– 30 January 1948 | 1924 | Belgaum |
| Sarojini Naidu |  | 13 February 1879– 2 March 1949 | 1925 | Kanpur |
| S. Srinivasa Iyengar |  | September 11, 1874– 19 May 1941 | 1926 | Gauhati |
| Mukhtar Ahmed Ansari |  | 25 December 1880– 10 May 1936 | 1927 | Madras |
| Motilal Nehru |  | 6 May 1861– 6 February 1931 | 1928 | Calcutta |
| Jawaharlal Nehru |  | 14 November 1889– 27 May 1964 | 1929 & 30 | Lahore |
| Vallabhbhai Patel |  | 31 October 1875– 15 December 1950 | 1931 | Karachi |
| Madan Mohan Malaviya |  | 25 December 1861 – 1946 | 1932 | Delhi |
| Madan Mohan Malaviya |  | 25 December 1861 – 1946 | 1933 | Calcutta |
| Nellie Sengupta |  | 1886–1973 | 1933 | Calcutta |
| Rajendra Prasad |  | 3 December 1884– 28 February 1963 | 1934 & 35 | Bombay |
| Jawaharlal Nehru |  | 14 November 1889– 27 May 1964 | 1936 | Lucknow |
| Jawaharlal Nehru |  | 14 November 1889– 27 May 1964 | 1936& 37 | Faizpur |
| Subhas Chandra Bose |  | 23 January 1897 – Unknown | 1938 | Haripura |
| Subhas Chandra Bose |  | 23 January 1897 – Unknown | 1939 | Tripuri |
| Abul Kalam Azad |  | 1888– 22 February 1958 | 1940–46 | Ramgarh |
| J. B. Kripalani |  | 1888– 19 March 1982 | 1947 | Meerut |
| Pattabhi Sitaraimayya |  | 24 December 1880– 17 December 1959 | 1948 & 49 | Jaipur |
| Purushottam Das Tandon |  | 1 August 1882– 1 July 1961 | 1950 | Nasik |
| Jawaharlal Nehru |  | 14 November 1889– 27 May 1964 | 1951 & 52 | Delhi |
| Jawaharlal Nehru |  | 14 November 1889– 27 May 1964 | 1953 | Hyderabad |
| Jawaharlal Nehru |  | 14 November 1889– 27 May 1964 | 1954 | Calcutta |
| U. N. Dhebar |  | 21 September 1905 – 1977 | 1955 | Avadi |
| U. N. Dhebar |  | 21 September 1905 – 1977 | 1956 | Amritsar |
| U. N. Dhebar |  | 21 September 1905 – 1977 | 1957 | Indore |
| U. N. Dhebar |  | 21 September 1905 – 1977 | 1958 | Gauhati |
| U. N. Dhebar |  | 21 September 1905 – 1977 | 1959 | Nagpur |
| Indira Gandhi |  | 19 November 1917– 31 October 1984 | 1959 | Delhi |
| Neelam Sanjiva Reddy |  | 19 May 1913– 1 June 1996 | 1960 | Bangalore |
| Neelam Sanjiva Reddy |  | 19 May 1913– 1 June 1996 | 1961 | Bhavnagar |
| Neelam Sanjiva Reddy |  | 19 May 1913– 1 June 1996 | 1962 & 63 | Patna |
| K. Kamaraj |  | 15 July 1903– 2 October 1975 | 1964 | Bhubaneswar |
| K. Kamaraj |  | 15 July 1903– 2 October 1975 | 1965 | Durgapur |
| K. Kamaraj |  | 15 July 1903– 2 October 1975 | 1966 & 67 | Jaipur |
| S. Nijalingappa |  | 10 December 1902– 9 August 2000 | 1968 | Hyderabad |
| S. Nijalingappa | 15 December 1992– 9 August 2000 | 1968 | gujarat |  |
| p. mehul | 10 December 1902– 9 August 2000 | 1969 | Faridabad |  |
| Jagjivan Ram |  | 5 April 1908– 6 July 1986 | 1970 & 71 | Bombay |
| Shankar Dayal Sharma |  | 19 August 1918– 26 December 1999 | 1972– 74 | Calcutta |
| Dev Kant Baruah |  | 22 February 1914 – 1996 | 1975– 77 | Chandigarh |
| Indira Gandhi |  | 19 November 1917 – 31 October 1984 | 1978 – 83 | Delhi |
| Indira Gandhi |  | 19 November 1917 – 31 October 1984 | 1983-84 | Calcutta |
| Rajiv Gandhi |  | 20 August 1944 – 21 May 1991 | 1985-91 | Bombay |
| P. V. Narasimha Rao |  | 28 June 1921 – 23 December 2004 | 1992-96 | Tirupati |
| Sitaram Kesri |  | November 1919 – 24 October 2000 | 1997-98 | Calcutta |
| Sonia Gandhi |  | 9 December 1946– | 1998–present | Calcutta |
Question:
how many presidents served more than one year?
Answer:
17