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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1955 | 1 |
| 1956 | 28 |
| 1957 | 66 |
| 1958 | 52 |
| 1959 | 66 |
| 1960 | 26 |
| 1961 | 40 |
| 1962 | 45 |
| 1964 | 5 |
| 1965 | 72 |
| 1966 | 103 |
| 1967 | 156 |
| 1968 | 186 |
| 1969 | 262 |
| 1970 | 215 |
| 1971 | 204 |
| 1972 | 227 |
| 1973 | 248 |
| 1974 | 288 |
| 1975 | 237 |
| 1976 | 285 |
| 1977 | 301 |
| 1978 | 284 |
| 1979 | 328 |
| 1980 | 348 |
| 1981 | 351 |
| 1982 | 388 |
| 1983 | 345 |
| 1984 | 485 |
| 1985 | 551 |
| 1986 | 570 |
| 1987 | 554 |
| 1988 | 642 |
| 1989 | 745 |
| 1990 | 761 |
| 1991 | 712 |
| 1992 | 728 |
| 1993 | 729 |
| 1994 | 781 |
| 1995 | 933 |
| 1996 | 960 |
| 1997 | 899 |
| 1998 | 905 |
| 1999 | 964 |
| 2000 | 991 |
| 2001 | 1086 |
| 2002 | 1099 |
| 2003 | 1253 |
| 2004 | 1323 |
| 2005 | 1359 |
| 2006 | 1423 |
| 2007 | 1602 |
| 2008 | 1648 |
| 2009 | 1733 |
| 2010 | 1824 |
| 2011 | 1950 |
| 2012 | 2047 |
| 2013 | 2050 |
| 2014 | 2194 |
| 2015 | 2354 |
| 2016 | 2204 |
| 2017 | 2030 |
| 2018 | 2154 |
| 2019 | 2279 |
| 2020 | 2269 |
| 2021 | 1994 |
| 2022 | 1850 |
| 2023 | 1630 |
| 2024 | 2625 |
| 2025 | 1727 |