Findings

17 ratios passed the three-run rule; 1 did not and are listed below rather than dropped.

write-csv — 57.37× (CV 1.3%)
str-contains — 22.22× (CV 5.2%)
concat — 16.94× (CV 4.8%)
str-split — 15.70× (CV 4.1%)
sort-single — 13.43× (CV 1.4%)
sort-multi — 13.33× (CV 4.5%)
join-right — 11.93× (CV 9.7%)
join-small — 11.24× (CV 1.6%)
read-csv — 9.82× (CV 2.0%)
filter — 8.13× (CV 8.7%)
filter-sort — 6.54× (CV 2.5%)
groupby-multi — 5.32× (CV 9.5%)
groupby-sum — 3.45× (CV 5.3%)
rolling-mean — 2.74× (CV 2.3%)
dt-month — 2.34× (CV 2.2%)
to-list — 1.92× (CV 3.0%)
dedupe — 1.77× (CV 3.8%)

Measured but not published