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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 2 |
| 1953 | 3 |
| 1954 | 3 |
| 1955 | 7 |
| 1956 | 8 |
| 1957 | 10 |
| 1958 | 10 |
| 1959 | 5 |
| 1960 | 4 |
| 1961 | 6 |
| 1962 | 3 |
| 1964 | 6 |
| 1965 | 16 |
| 1966 | 39 |
| 1967 | 56 |
| 1968 | 42 |
| 1969 | 59 |
| 1970 | 73 |
| 1971 | 105 |
| 1972 | 104 |
| 1973 | 140 |
| 1974 | 196 |
| 1975 | 173 |
| 1976 | 221 |
| 1977 | 245 |
| 1978 | 209 |
| 1979 | 194 |
| 1980 | 212 |
| 1981 | 189 |
| 1982 | 219 |
| 1983 | 224 |
| 1984 | 228 |
| 1985 | 275 |
| 1986 | 347 |
| 1987 | 310 |
| 1988 | 343 |
| 1989 | 424 |
| 1990 | 465 |
| 1991 | 611 |
| 1992 | 800 |
| 1993 | 1026 |
| 1994 | 1269 |
| 1995 | 1519 |
| 1996 | 1788 |
| 1997 | 2129 |
| 1998 | 2288 |
| 1999 | 2488 |
| 2000 | 2826 |
| 2001 | 3041 |
| 2002 | 3179 |
| 2003 | 3260 |
| 2004 | 3497 |
| 2005 | 3622 |
| 2006 | 4251 |
| 2007 | 4288 |
| 2008 | 4384 |
| 2009 | 4641 |
| 2010 | 4943 |
| 2011 | 5400 |
| 2012 | 5358 |
| 2013 | 5345 |
| 2014 | 5172 |
| 2015 | 5031 |
| 2016 | 4661 |
| 2017 | 4354 |
| 2018 | 4125 |
| 2019 | 3715 |
| 2020 | 3323 |
| 2021 | 2936 |
| 2022 | 2298 |
| 2023 | 1679 |
| 2024 | 772 |