Total babies named Hiroto (all years): 191
| Year | Boys (count / rank / %) |
|---|---|
| 2022 | 5 / #13046 / 0.000% |
| 2021 | 7 / #10115 / 0.000% |
| 2020 | 6 / #11112 / 0.000% |
| 2019 | 8 / #9195 / 0.000% |
| 2018 | 10 / #7805 / 0.001% |
| 2017 | 7 / #10096 / 0.000% |
| 2016 | 6 / #11231 / 0.000% |
| 2015 | 13 / #6463 / 0.001% |
| 2014 | 8 / #9093 / 0.000% |
| 2013 | 6 / #11240 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 2012 | 11 / #7223 / 0.001% |
| 2011 | 9 / #8313 / 0.000% |
| 2010 | 11 / #7260 / 0.001% |
| 2009 | 14 / #6224 / 0.001% |
| 2008 | 8 / #9305 / 0.000% |
| 2007 | 6 / #11438 / 0.000% |
| 2006 | 5 / #12737 / 0.000% |
| 2005 | 11 / #6809 / 0.001% |
| 2004 | 5 / #12017 / 0.000% |
| 2003 | 5 / #11538 / 0.000% |
| Year | Boys (count / rank / %) |
|---|---|
| 2002 | 7 / #8803 / 0.000% |
| 2001 | 6 / #9717 / 0.000% |
| 2000 | 7 / #8528 / 0.000% |
| 1997 | 5 / #9829 / 0.000% |
| 1991 | 5 / #8707 / 0.000% |