20062006: 14 births, rank #5,781
2007: 13 births, rank #6,262
2008: 12 births, rank #6,763
2009: 13 births, rank #6,436
2010: 16 births, rank #5,478
20112011: 7 births, rank #9,600
2012: 10 births, rank #7,559
2013: 11 births, rank #7,026
2014: 6 births, rank #10,717
2015: 7 births, rank #9,568
20162016: 10 births, rank #7,605
2017: no US SSA record for this spelling
2018: 5 births, rank #12,156
2019: no US SSA record for this spelling
2020: no US SSA record for this spelling
20212021: no US SSA record for this spelling
2022: no US SSA record for this spelling
2023: no US SSA record for this spelling
2024: no US SSA record for this spelling
20252025: 5 births, rank #12,008
Chas rose from #944 to #905 for boys between 1924 and 1925. Its highest annual birth count came in 1915, with 99 births.