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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1952 | 1 |
| 1956 | 1 |
| 1960 | 2 |
| 1963 | 1 |
| 1965 | 2 |
| 1966 | 2 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 3 |
| 1971 | 1 |
| 1972 | 10 |
| 1973 | 5 |
| 1974 | 8 |
| 1975 | 6 |
| 1976 | 10 |
| 1977 | 6 |
| 1978 | 4 |
| 1979 | 5 |
| 1980 | 13 |
| 1981 | 12 |
| 1982 | 16 |
| 1983 | 23 |
| 1984 | 16 |
| 1985 | 30 |
| 1986 | 25 |
| 1987 | 29 |
| 1988 | 44 |
| 1989 | 26 |
| 1990 | 30 |
| 1991 | 48 |
| 1992 | 40 |
| 1993 | 52 |
| 1994 | 42 |
| 1995 | 40 |
| 1996 | 49 |
| 1997 | 50 |
| 1998 | 80 |
| 1999 | 78 |
| 2000 | 84 |
| 2001 | 80 |
| 2002 | 95 |
| 2003 | 107 |
| 2004 | 95 |
| 2005 | 109 |
| 2006 | 121 |
| 2007 | 125 |
| 2008 | 146 |
| 2009 | 136 |
| 2010 | 143 |
| 2011 | 175 |
| 2012 | 203 |
| 2013 | 196 |
| 2014 | 199 |
| 2015 | 224 |
| 2016 | 225 |
| 2017 | 198 |
| 2018 | 209 |
| 2019 | 224 |
| 2020 | 250 |
| 2021 | 271 |
| 2022 | 252 |
| 2023 | 249 |
| 2024 | 251 |
| 2025 | 237 |