Name the number of districts for december 1799
{'header': ['Con- gress', 'District', 'Vacator', 'Election date', 'Successor', 'Took seat'], 'page_title': 'List of special elections to the United States House of Representatives in New York', 'section_title': 'List', 'caption': 'List', 'rows': [['2nd', 'New York 1st', 'James Townsend ( F ) (died)', 'April 26 to 28, 1791', 'Thomas Tredwell ( D-R )', 'October 24, 1791'], ['6th', 'New York 1st', 'Jonathan N. Havens (D-R) (died)', 'December 1799', 'John Smith (D-R)', 'February 27, 1800'], ['7th', 'New York 5th', 'Thomas Tillotson (D-R) (res.)', 'October 1801', 'Theodorus Bailey (D-R)', 'December 7, 1801'], ['7th', 'New York 6th', 'John Bird (F) (res.)', 'October 1801', 'John P. Van Ness (D-R)', 'December 7, 1801'], ['8th', 'New York 7th', 'John Cantine (D-R) (res.)', 'April 26 to 28, 1803', 'Josiah Hasbrouck (D-R)', 'October 17, 1803'], ['8th', 'New York 6th', 'Isaac Bloom (D-R) (died)', 'September 1803', 'Daniel C. Verplanck (D-R)', 'October 17, 1803'], ['8th', 'New York 1st', 'John Smith (D-R) (el. US Sen.)', 'April 24 to 26, 1804', 'Samuel Riker (D-R)', 'November 5, 1804'], ['8th', 'New York 3rd', 'Samuel L. Mitchill (D-R) (el. US Sen.)', 'December 1804?', 'George Clinton, Jr. ( D-R )', 'February 14, 1805'], ['9th', 'New York 2nd New York 3rd', 'Daniel D. Tompkins (D-R) (res.)', 'October 1804', 'Gurdon S. Mumford (D-R)', 'March 4, 1805'], ['9th', 'New York 2nd New York 3rd', 'Samuel L. Mitchill (D-R) (el. US Sen.)', 'December 1804?', 'George Clinton, Jr. ( D-R )', 'March 4, 1805'], ['10th', 'New York 12th', 'David Thomas (D-R) (res.)', 'April 26 to 28, 1808', 'Nathan Wilson (D-R)', 'November 7, 1808'], ['11th', 'New York 2nd', 'William Denning (D-R) (res.)', 'April 24 to 26, 1810', 'Samuel L. Mitchill (D-R)', 'December 4, 1810'], ['12th', 'New York 6th', 'Robert Le Roy Livingston (F) (res.)', 'December 15 to 17, 1812', 'Thomas P. Grosvenor (F)', 'January 29, 1813'], ['13th', 'New York 15th', 'William Dowse (F] (died)', 'April 27 to 29, 1813', 'John M. Bowers (F)', 'June 21, 1813'], ['13th', 'New York 15th', 'William Dowse (F] (died)', 'April 27 to 29, 1813', 'Isaac Williams, Jr. (D-R)', 'January 24, 1814'], ['13th', 'New York 2nd', 'Egbert Benson (F) (res.)', 'December 28 to 30, 1813', 'William Irving (D-R)', 'January 22, 1814'], ['14th', 'New York 6th', 'Jonathan Fisk (D-R) (res.)', 'April 25 to 27, 1815', 'James W. Wilkin (D-R)', 'December 4, 1815'], ['14th', 'New York 12th', 'Benjamin Pond (D-R) (died)', 'April 25 to 27, 1815', 'Asa Adgate (D-R)', 'December 7, 1815'], ['14th', 'New York 21st', 'Peter B. Porter (D-R) (res.)', 'April 23 to 25, 1816', 'Archibald S. Clarke (D-R)', 'December 2, 1816'], ['14th', 'New York 20th', 'Enos T. Throop (D-R) (res.)', 'September 1816', 'Daniel Avery (D-R)', 'December 3, 1816'], ['15th', 'New York 4th', 'Henry B. Lee ( D-R ) (died)', 'April 28 to 30, 1817', 'James Tallmadge, Jr. ( D-R )', 'December 1, 1817'], ['17th', 'New York 6th', 'Selah Tuthill ( D-R ) (died)', 'November 6 to 8, 1821', 'Charles Borland, Jr. ( D-R )', 'December 3, 1821'], ['17th', 'New York 9th', 'Solomon Van Rensselaer ( F ) (res.)', 'February 25 to 27, 1822', 'Stephen Van Rensselaer ( F )', 'March 12, 1822'], ['18th', 'New York 28th', 'William B. Rochester ( D-R ) (res.)', '1823', 'William Woods ( D-R )', 'December 1, 1823'], ['20th', 'New York 29th', 'David E. Evans ( J ) (res.)', 'November 5 to 7, 1827', 'Phineas L. Tracy ( A )', 'December 3, 1827']]}