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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1952 | 5 |
| 1953 | 1 |
| 1955 | 2 |
| 1956 | 2 |
| 1957 | 1 |
| 1960 | 4 |
| 1961 | 13 |
| 1962 | 14 |
| 1963 | 20 |
| 1964 | 15 |
| 1965 | 9 |
| 1966 | 17 |
| 1967 | 21 |
| 1968 | 22 |
| 1969 | 12 |
| 1970 | 19 |
| 1971 | 24 |
| 1972 | 18 |
| 1973 | 15 |
| 1974 | 19 |
| 1975 | 17 |
| 1976 | 28 |
| 1977 | 26 |
| 1978 | 55 |
| 1979 | 54 |
| 1980 | 45 |
| 1981 | 58 |
| 1982 | 69 |
| 1983 | 83 |
| 1984 | 81 |
| 1985 | 99 |
| 1986 | 115 |
| 1987 | 104 |
| 1988 | 114 |
| 1989 | 109 |
| 1990 | 111 |
| 1991 | 108 |
| 1992 | 127 |
| 1993 | 137 |
| 1994 | 140 |
| 1995 | 169 |
| 1996 | 176 |
| 1997 | 161 |
| 1998 | 177 |
| 1999 | 218 |
| 2000 | 224 |
| 2001 | 225 |
| 2002 | 240 |
| 2003 | 283 |
| 2004 | 293 |
| 2005 | 271 |
| 2006 | 298 |
| 2007 | 292 |
| 2008 | 341 |
| 2009 | 332 |
| 2010 | 325 |
| 2011 | 400 |
| 2012 | 399 |
| 2013 | 413 |
| 2014 | 436 |
| 2015 | 473 |
| 2016 | 483 |
| 2017 | 531 |
| 2018 | 463 |
| 2019 | 553 |
| 2020 | 665 |
| 2021 | 759 |
| 2022 | 745 |
| 2023 | 655 |
| 2024 | 600 |
| 2025 | 9 |