Using the search argument 1 OR 2 OR 3 OR 4 OR 5 OR 6 OR 7 OR 8 OR 9 OR 0 which assumes every cross reference includes at least 1 number and running against the search field cross-references for all English Bibles, I came up with the following cross-reference counts:
116 English Bibles use the cross-reference field
NIV 84,779 results
HCSB 84,245 results
LSB 79,566 results
NASB95 79,419 results
ESV 68,394 results
NKJV 63,394 results
CSB 54,247 results
NRSVue 48,045 results
MEV 37,837 results
NABRE 27,334 results
NJB 25,043 results
...
Harwood 13 results