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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1949 | 1 |
| 1950 | 3 |
| 1951 | 3 |
| 1952 | 5 |
| 1953 | 6 |
| 1954 | 5 |
| 1955 | 1 |
| 1956 | 15 |
| 1957 | 12 |
| 1958 | 2 |
| 1959 | 10 |
| 1960 | 13 |
| 1961 | 5 |
| 1962 | 21 |
| 1963 | 14 |
| 1964 | 21 |
| 1965 | 13 |
| 1966 | 26 |
| 1967 | 17 |
| 1968 | 33 |
| 1969 | 33 |
| 1970 | 39 |
| 1971 | 36 |
| 1972 | 35 |
| 1973 | 40 |
| 1974 | 33 |
| 1975 | 48 |
| 1976 | 73 |
| 1977 | 68 |
| 1978 | 77 |
| 1979 | 67 |
| 1980 | 88 |
| 1981 | 78 |
| 1982 | 83 |
| 1983 | 103 |
| 1984 | 105 |
| 1985 | 129 |
| 1986 | 120 |
| 1987 | 142 |
| 1988 | 170 |
| 1989 | 171 |
| 1990 | 197 |
| 1991 | 233 |
| 1992 | 208 |
| 1993 | 261 |
| 1994 | 309 |
| 1995 | 300 |
| 1996 | 362 |
| 1997 | 387 |
| 1998 | 428 |
| 1999 | 506 |
| 2000 | 603 |
| 2001 | 705 |
| 2002 | 749 |
| 2003 | 928 |
| 2004 | 1235 |
| 2005 | 1300 |
| 2006 | 1453 |
| 2007 | 1660 |
| 2008 | 1870 |
| 2009 | 2108 |
| 2010 | 2403 |
| 2011 | 2640 |
| 2012 | 2865 |
| 2013 | 2996 |
| 2014 | 3123 |
| 2015 | 3190 |
| 2016 | 3210 |
| 2017 | 3248 |
| 2018 | 3107 |
| 2019 | 3295 |
| 2020 | 3680 |
| 2021 | 3880 |
| 2022 | 3460 |
| 2023 | 922 |