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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1956 | 1 |
| 1959 | 1 |
| 1962 | 1 |
| 1964 | 2 |
| 1965 | 2 |
| 1967 | 2 |
| 1971 | 2 |
| 1974 | 1 |
| 1977 | 1 |
| 1979 | 1 |
| 1980 | 34 |
| 1981 | 58 |
| 1982 | 96 |
| 1983 | 102 |
| 1984 | 105 |
| 1985 | 137 |
| 1986 | 121 |
| 1987 | 189 |
| 1988 | 174 |
| 1989 | 148 |
| 1990 | 129 |
| 1991 | 205 |
| 1992 | 297 |
| 1993 | 286 |
| 1994 | 297 |
| 1995 | 312 |
| 1996 | 311 |
| 1997 | 423 |
| 1998 | 491 |
| 1999 | 616 |
| 2000 | 645 |
| 2001 | 780 |
| 2002 | 849 |
| 2003 | 976 |
| 2004 | 983 |
| 2005 | 1132 |
| 2006 | 1195 |
| 2007 | 1233 |
| 2008 | 1341 |
| 2009 | 1522 |
| 2010 | 1514 |
| 2011 | 1809 |
| 2012 | 1876 |
| 2013 | 1979 |
| 2014 | 2248 |
| 2015 | 2425 |
| 2016 | 2332 |
| 2017 | 2297 |
| 2018 | 2532 |
| 2019 | 2424 |
| 2020 | 1893 |
| 2021 | 1192 |
| 2022 | 892 |
| 2023 | 688 |
| 2024 | 1675 |
| 2025 | 1163 |