Popularity in Czechia
Numbers
| Janek (masculine) | |||
| Year | Rank | Times Used | |
| 2016 | #118 | 32 | |
| 2015 | #129 | 27 | |
| 2014 | #149 | 21 | |
| 2013 | #145 | 20 | |
| 2012 | #162 | 14 | |
| 2011 | #175 | 11 | |
| 2010 | - | - | |
| 2009 | #164 | 14 | |
| 2008 | - | - | |
| 2007 | - | - | |
| 2006 | - | - | |
| 2005 | - | - | |
| 2004 | - | - | |
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| 1936 | - | - | |
| 1935 | - | - | |
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