Excel
YearNumber Of Papers
2020 0
2019 0
2018 0
2017 812
2016 2078
2015 2159
2014 1991
2013 1875
2012 1467
2011 1937
2010 1979
2009 1662
2008 1647
2007 1652
2006 1539
2005 1467
2004 1433
2003 1360
2002 1216
2001 1070
2000 1031
1999 985
1998 907
1997 841
1996 866
1995 921
1994 802
1993 837
1992 823
1991 914
1990 877
1989 767
1988 602
1987 627
1986 612
1985 558
1984 499
1983 500
1982 352
1981 313
1980 252
1979 219
1978 195
1977 183
1976 145
1975 189
1974 60
1973 32
1972 316
1971 477
1970 268
1969 22
1968 5
1967 2
1966 4
1965 12
1964 104
1963 47
1962 7
1961 0
1960 0
1959 0
1958 0
1957 0
1956 0
1955 0
1954 0
1953 0
1952 0
1951 0
1950 0
1949 0
1948 0
1947 0
1946 0
1945 0
1944 0
1943 0
1942 0
1941 0
1940 0
1939 0
1938 0
1937 0
1936 0
1935 0
1934 0
1933 0
1932 0
1931 0
1930 0
1929 0
1928 0
1927 0
1926 0
1925 0
1924 0
1923 0
1922 0
1921 0
1920 0
1919 0
1918 0
1917 0
1916 0
1915 0
1914 0
1913 0
1912 0
1911 0
1910 0
1909 0
1908 0
1907 0
1906 0
1905 0
1904 0
1903 0
1902 0
1901 0
1900 0
1899 0
1898 0
1897 0
1896 0
1895 0
1894 0
1893 0
1892 0
1891 0
1890 0
1889 0
1888 0
1887 0
1886 0
1885 0
1884 0
1883 0
1882 0
1881 0
1880 0
1879 0
1878 0
1877 0
1876 0
1875 0
1874 0
1873 0
1872 0
1871 0
1870 0
1869 0
1868 0
1867 0
1866 0
1865 0
1864 0
1863 0
1862 0
1861 0
1860 0
1859 0
1858 0
1857 0
1856 0
1855 0
1854 0
1853 0
1852 0
1851 0
1850 0
1849 0
1848 0
1847 0
1846 0
1845 0
1844 0
1843 0
1842 0
1841 0
1840 0
1839 0
1838 0
1837 0
1836 0
1835 0
1834 0
1833 0
1832 0
1831 0
1830 0
1829 0
1828 0
1827 0
1826 0
1825 0
1824 0
1823 0
1822 0
1821 0
1820 0
1819 0
1818 0
1817 0
1816 0
1815 0
1814 0
1813 0
1812 0
1811 0
1810 0
1809 0
1808 0
1807 0
1806 0
1805 0
1804 0
1803 0
1802 0
1801 0