Popularity in Northern Ireland
Numbers
| Leo (masculine) | |||
| Year | Rank | Percent Used | |
| 2022 | #11 | 0.992 | |
| 2021 | #7 | 1.032 | |
| 2020 | #11 | 0.993 | |
| 2019 | #11 | 0.977 | |
| 2018 | #10 | 1.180 | |
| 2017 | #11 | 1.034 | |
| 2016 | #12 | 0.990 | |
| 2015 | #28 | 0.688 | |
| 2014 | #26 | 0.733 | |
| 2013 | #30 | 0.670 | |
| 2012 | #51 | 0.477 | |
| 2011 | #56 | 0.476 | |
| 2010 | - | - | |
| 2009 | #78 | 0.328 | |
| 2008 | #89 | 0.288 | |
| 2007 | #89 | 0.288 | |
| 2006 | #93 | 0.258 | |
| 2005 | #83 | 0.309 | |
| 2004 | - | - | |
| 2003 | #100 | 0.222 | |
| 2002 | - | - | |
| 2001 | - | - | |
| 2000 | - | - | |
| 1999 | - | - | |
| 1998 | - | - | |
| 1997 | - | - | |
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