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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 3 |
| 1952 | 9 |
| 1953 | 13 |
| 1954 | 3 |
| 1955 | 3 |
| 1956 | 5 |
| 1963 | 4 |
| 1964 | 1 |
| 1965 | 44 |
| 1966 | 74 |
| 1967 | 75 |
| 1968 | 101 |
| 1969 | 90 |
| 1970 | 87 |
| 1971 | 135 |
| 1972 | 142 |
| 1973 | 182 |
| 1974 | 155 |
| 1975 | 174 |
| 1976 | 168 |
| 1977 | 167 |
| 1978 | 190 |
| 1979 | 213 |
| 1980 | 222 |
| 1981 | 187 |
| 1982 | 233 |
| 1983 | 228 |
| 1984 | 190 |
| 1985 | 214 |
| 1986 | 276 |
| 1987 | 277 |
| 1988 | 341 |
| 1989 | 380 |
| 1990 | 345 |
| 1991 | 311 |
| 1992 | 326 |
| 1993 | 311 |
| 1994 | 298 |
| 1995 | 292 |
| 1996 | 285 |
| 1997 | 270 |
| 1998 | 234 |
| 1999 | 224 |
| 2000 | 326 |
| 2001 | 310 |
| 2002 | 350 |
| 2003 | 372 |
| 2004 | 434 |
| 2005 | 590 |
| 2006 | 651 |
| 2007 | 789 |
| 2008 | 915 |
| 2009 | 1046 |
| 2010 | 1181 |
| 2011 | 1305 |
| 2012 | 1299 |
| 2013 | 1357 |
| 2014 | 1353 |
| 2015 | 1448 |
| 2016 | 1551 |
| 2017 | 1485 |
| 2018 | 1506 |
| 2019 | 1370 |
| 2020 | 1134 |
| 2021 | 858 |
| 2022 | 129 |
| 2023 | 48 |
| 2024 | 753 |
| 2025 | 2 |