Ova (feminine) | Ova (masculine) | |||||
Year | Rank | Percent Used | Rank | Percent Used | ||
2020 | - | - | - | - | ||
2010 | - | - | - | - | ||
2000 | - | - | - | - | ||
1990 | - | - | - | - | ||
1980 | - | - | - | - | ||
1970 | - | - | - | - | ||
1960 | - | - | - | - | ||
1950 | - | - | - | - | ||
1940 | - | - | - | - | ||
1930 | - | - | - | - | ||
1920 | #1362 | 0.003 | - | - | ||
1910 | #985 | 0.004 | #1727 | 0.002 | ||
1900 | #822 | 0.006 | #1585 | 0.001 | ||
1890 | #783 | 0.007 | - | - | ||
1880 | #900 | 0.004 | - | - | ||