Popularity in Czechia
Numbers
| Petra (feminine) | |||
| Year | Rank | Times Used | |
| 2016 | #76 | 140 | |
| 2015 | #74 | 158 | |
| 2014 | #72 | 162 | |
| 2013 | #58 | 195 | |
| 2012 | #51 | 220 | |
| 2011 | #50 | 239 | |
| 2010 | #44 | 278 | |
| 2009 | #44 | 303 | |
| 2008 | #36 | 375 | |
| 2007 | #32 | 398 | |
| 2006 | #34 | 384 | |
| 2005 | #27 | 450 | |
| 2004 | #27 | 446 | |
| 2003 | #24 | 464 | |
| 2002 | #22 | 579 | |
| 2001 | #21 | 587 | |
| 2000 | #19 | 688 | |
| 1999 | #18 | 720 | |
| 1998 | #17 | 841 | |
| 1997 | #16 | 839 | |
| 1996 | #12 | 960 | |
| 1995 | #10 | 1125 | |
| 1994 | #10 | 1377 | |
| 1993 | #9 | 1786 | |
| 1992 | #6 | 2039 | |
| 1991 | #6 | 2269 | |
| 1990 | #7 | 2595 | |
| 1989 | #3 | 3004 | |
| 1988 | #2 | 3433 | |
| 1987 | #4 | 3320 | |
| 1986 | #3 | 3480 | |
| 1985 | #3 | 3896 | |
| 1984 | #2 | 3780 | |
| 1983 | #3 | 3619 | |
| 1982 | #3 | 3689 | |
| 1981 | #3 | 4109 | |
| 1980 | #2 | 4370 | |
| 1979 | #2 | 5186 | |
| 1978 | #2 | 5420 | |
| 1977 | #2 | 5212 | |
| 1976 | #1 | 5546 | |
| 1975 | #2 | 4854 | |
| 1974 | #2 | 4591 | |
| 1973 | #4 | 3087 | |
| 1972 | #7 | 2169 | |
| 1971 | #10 | 1775 | |
| 1970 | #10 | 1580 | |
| 1969 | #16 | 1290 | |
| 1968 | #18 | 1105 | |
| 1967 | #19 | 928 | |
| 1966 | #20 | 904 | |
| 1965 | #43 | 372 | |
| 1964 | #46 | 316 | |
| 1963 | #65 | 148 | |
| 1962 | #71 | 106 | |
| 1961 | #107 | 49 | |
| 1960 | #93 | 56 | |
| 1959 | #122 | 34 | |
| 1958 | #105 | 43 | |
| 1957 | #110 | 42 | |
| 1956 | #119 | 37 | |
| 1955 | #111 | 44 | |
| 1954 | #106 | 45 | |
| 1953 | #108 | 44 | |
| 1952 | #101 | 51 | |
| 1951 | #106 | 49 | |
| 1950 | #110 | 42 | |
| 1949 | #118 | 34 | |
| 1948 | #122 | 32 | |
| 1947 | #110 | 37 | |
| 1946 | #109 | 40 | |
| 1945 | #107 | 31 | |
| 1944 | #158 | 18 | |
| 1943 | #135 | 22 | |
| 1942 | - | - | |
| 1941 | - | - | |
| 1940 | - | - | |
| 1939 | - | - | |
| 1938 | - | - | |
| 1937 | - | - | |
| 1936 | - | - | |
| 1935 | - | - | |
 |
|||