I sorted the data by which occupation marries within the same occupation the most: 13.9% Physicians and Surgeons 10.7% Textile Winding, Twistin

I sorted the data by which occupation marries within the same occupation the most: 13.9% Physicians and Surgeons 10.7% Textile Winding, Twisting, and Drawing Out Machine Setters, Operators, and Tenders 10.1% none 9.7% Farmers, Ranchers, and Other Agricultural Managers 9.7% Lawyers, and judges, magistrates, and other judicial workers 9.5% Miscellaneous Personal Appearance Workers 9.3% Veterinarians 8.8% Dentists 8.5% Miscellaneous agricultural workers including animal breeders 8.4% Postsecondary Teachers 7.6% Software Developers, Applications and Systems Software 7.6% Health Diagnosing and Treating Practitioners, All Other 7.5% Optometrists 7.3% Chiropractors 7.2% Pharmacists 6.7% Elementary and Middle School Teachers 6.4% Food Service Managers 6.2% Agricultural and Food Scientists 6.1% Physical Therapists 6.1% Gaming Services Workers 6.0% Upholsterers 5.9% Communications Equipment Operators, All Other 5.8% Air Traffic Controllers and Airfield Operations Specialists 5.8% Physical Scientists, All Other 5.8% Nurse Anesthetists 5.5% Chief executives and legislators 5.5% Real Estate Brokers and Sales Agents 5.4% Clergy 5.2% Marine Engineers and Naval Architects 5.0% Psychologists 4.9% Lodging Managers 4.8% First-Line Supervisors of Retail Sales Workers 4.7% Miscellaneous Managers, Including Funeral Service Managers and Postmasters and Mail Superintendents 4.7% Medical Scientists, and Life Scientists, All Other 4.6% Secondary School Teachers 4.0% Textile Knitting and Weaving Machine Setters, Operators, and Tenders 4.0% Podiatrists 4.0% News Analysts, Reporters and Correspondents 4.0% Sewing Machine Operators 3.9% Bailiffs, Correctional Officers, and Jailers 3.9% First-Line Supervisors of Personal Service Workers 3.8% Tailors, Dressmakers, and Sewers 3.8% Economists 3.8% Musicians, Singers, and Related Workers 3.8% Environmental Scientists and Geoscientists 3.8% Property, Real Estate, and Community Association Managers 3.7% Insurance Sales Agents 3.5% Agricultural Inspectors 3.3% Butchers and Other Meat, Poultry, and Fish Processing Workers 3.2% Morticians, Undertakers, and Funeral Directors