20062006: 487 births, rank #524
2007: 519 births, rank #511
2008: 628 births, rank #447
2009: 653 births, rank #431
2010: 840 births, rank #359
20112011: 880 births, rank #344
2012: 932 births, rank #337
2013: 759 births, rank #394
2014: 672 births, rank #444
2015: 569 births, rank #506
20162016: 440 births, rank #611
2017: 420 births, rank #622
2018: 347 births, rank #696
2019: 308 births, rank #769
2020: 291 births, rank #796
20212021: 271 births, rank #863
2022: 299 births, rank #830
2023: 251 births, rank #919
2024: 216 births, rank #1,031
20252025: 202 births, rank #1,069
Kellen moved from #831 to #920 for boys between 2022 and 2023. Its highest annual birth count came in 2012, with 932 births.