Total babies named Thienan (all years): 90
| Year | Boys (count / rank / %) |
|---|---|
| 2022 | 6 / #12161 / 0.000% |
| 2017 | 5 / #14054 / 0.000% |
| 2014 | — |
| 2013 | 7 / #10614 / 0.000% |
| 2012 | 6 / #12134 / 0.000% |
| 2010 | 6 / #12065 / 0.000% |
| 2009 | 8 / #9768 / 0.000% |
| 2008 | 5 / #14393 / 0.000% |
| 2006 | 7 / #10542 / 0.000% |
| 2003 | 6 / #10750 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 2002 | — |
| 2000 | 5 / #11970 / 0.000% |