Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Responsible Minister(s) | Crown Entities | Monitoring Department(s) | Category / Type | Empowering Legislation |
| --- | --- | --- | --- | --- |
| ACC | Accident Compensation Corporation | Labour | Crown agent | Injury Prevention, Rehabilitation, and Compensation Act 2001 (Part 7/Sched 5) |
| Arts, Culture and Heritage | Arts Council of New Zealand Toi Aotearoa | Culture and Heritage | ACE | Arts Council of New Zealand Toi Aotearoa Act 1994 (Part 1) |
| Arts, Culture and Heritage | Museum of New Zealand Te Papa Tongarewa Board | Culture and Heritage | ACE | Museum of New Zealand Te Papa Tongarewa Act 1992 (Part 1 and Schedule 1) |
| Arts, Culture and Heritage | New Zealand Film Commission | Culture and Heritage | ACE | New Zealand Film Commission Act 1978 |
| Arts, Culture and Heritage | New Zealand Historic Places Trust (Pouhere Taonga) | Culture and Heritage | ACE | Historic Places Act 1993 (Part 3) |
| Arts, Culture and Heritage | New Zealand Symphony Orchestra | Culture and Heritage | ACE | New Zealand Symphony Orchestra Act 2004 (Part 2 and Schedule 1) |
| Broadcasting | Broadcasting Commission (New Zealand On Air) | Culture and Heritage | ACE | Broadcasting Act 1989 (Part 4 and Schedule 1) |
| Broadcasting | Broadcasting Standards Authority | Culture and Heritage | ICE | Broadcasting Act 1989 (Part 3 and Schedule 1) |
| Broadcasting and Finance (2) | Radio New Zealand Limited | CCMAU / Culture and Heritage and Treasury | CEC | Radio New Zealand Act 1995 |
| Broadcasting and Finance (2) | Television New Zealand Limited | CCMAU / Culture and Heritage and Treasury | CEC | Television New Zealand Act 2003 |
| Commerce | Accounting Standards Review Board | Economic Development | ICE | Financial Reporting Act 1993 (Part 3 and Schedule 1) |
| Commerce | Commerce Commission | Economic Development | ICE | Commerce Act 1986 (Part 1) |
| Commerce | Securities Commission | Economic Development | ICE | Securities Act 1978 (Part 1) |
| Commerce | Standards Council | Economic Development | ACE | Standards Act 1988 |
| Commerce | Takeovers Panel | Economic Development | ICE | Takeovers Act 1993 (Part 1 and Schedule) |
| Commerce | Testing Laboratory Registration Council | Economic Development | ACE | Testing Laboratory Registration Act 1972 |
| Community and Voluntary Sector | Charities Commission | Internal Affairs | ACE | Charities Act 2005 (Part 1) |
| CRIs and Finance (2) | Crown research institutes (9) | CCMAU and Treasury | CEC | Crown Research Institutes Act 1992 |
| Economic Development and Finance (2) | New Zealand Venture Investment Fund Limited | CCMAU and Treasury | CEC | None (company constitution) |
| Education | Careers New Zealand | Education | Crown agent | Education Act 1989 (Part 22) |
| Education | New Zealand Qualifications Authority | Education | Crown agent | Education Act 1989 (Part 20) |
| Education | New Zealand Teachers Council | Education | ACE | Education Act 1989 (Part 10A) |
| Education | School boards of trustees (2,474) | Education | School BoTs | Education Act 1989 (Parts 7, 7A, 8, 9 and 12 and Schedules 5A and 6) |
| Energy | Electricity Authority | Economic Development | Crown agent | Electricity Act 1992 (Part 15) |
| Energy | Energy Efficiency and Conservation Authority | Environment | Crown agent | Energy Efficiency and Conservation Act 2000 (and Schedule) |
| Environment | Environmental Risk Management Authority | Environment | ACE | Hazardous Substances and New Organisms Act 1996 (Part 4 and Schedule 1) |
| Finance | Earthquake Commission | Treasury | Crown agent | Earthquake Commission Act 1993 (Part 1 and Schedule 1) |
| Finance | Government Superannuation Fund Authority | Treasury | ACE | Government Superannuation Fund Act 1956 (Part 1 and Schedule 4) |
| Finance | Guardians of New Zealand Superannuation | Treasury | ACE | New Zealand Superannuation and Retirement Income Act 2001 (Part 2 and Schedule 3) |
| Finance | The New Zealand Productivity Commission | Treasury | ICE | New Zealand Productivity Commission Act, 2010 |
| Foreign Affairs | New Zealand Antarctic Institute | Foreign Affairs and Trade | Crown agent | New Zealand Antarctic Institute Act 1996 (Part 1 and Schedule 1) |
| Health | Alcohol Advisory Council of New Zealand | Health | ACE | Alcohol Advisory Council Act 1976 |
| Health | Crown Health Financing Agency | Health | Crown agent | New Zealand Public Health and Disability Act 2000 (Part 4 and Schedule 6) |
| Health | District health boards (21) | Health | Crown agent | New Zealand Public Health and Disability Act 2000 (Part 3 and Scheds 2 and 3) |
| Health | Health and Disability Commissioner | Health | ICE | Health and Disability Commissioner Act 1994 (Part 1 and Schedule 2) |
| Health | Health Research Council of New Zealand | Health | Crown agent | Health Research Council Act 1990 (Part 1 and Schedule 1) |
| Health | Health Sponsorship Council | Health | Crown agent | Smoke-free Environments Act 1990 (Part 3) |
| Health | Mental Health Commission | Health | ACE | Mental Health Commission Act 1998 (Schedule 1) |
| Health | New Zealand Blood Service | Health | Crown agent | New Zealand Public Health and Disability Act 2000 (Part 4 and Schedule 6) |
| Health | Pharmaceutical Management Agency | Health | Crown agent | New Zealand Public Health and Disability Act 2000 (Part 4 and Schedule 6) |
| Housing and Finance (2) | Housing New Zealand Corporation | Building and Housing / Treasury | Crown agent | Housing Corporation Act 1974 (Part 1 and Schedule 1A) |
| Industry and Regional Development, and Trade (2) | New Zealand Trade and Enterprise | Economic Development, and Foreign Affairs and Trade | Crown agent | New Zealand Trade and Enterprise Act 2003 (Part 2) |
| Internal Affairs | New Zealand Fire Service Commission | Internal Affairs | Crown agent | Fire Service Act 1975 (Part 1) |
| Internal Affairs | New Zealand Lotteries Commission | CCMAU | ACE | Gambling Act 2003 (Part 3, Subpart 2, and Schedule 4) |
| Internal Affairs | Office of Film and Literature Classification | Internal Affairs | ICE | Films, Videos, and Publications Classification Act 1993 (Part 6 and Schedule 1) |
| Justice | Electoral Commission | Justice | ICE | Electoral Act 1993 (Part 1 and Schedule 1) |
| Justice | Human Rights Commission | Justice | ICE | Human Rights Act 1993 (Part 1 and Schedule 1) |
| Justice | Legal Services Agency | Justice | Crown agent | Legal Services Act 2000 (Part 6 and Schedule 2) |
| Justice | Police Complaints Authority | Justice | ICE | Police Complaints Authority Act 1988 |
| Justice | Privacy Commissioner | Justice | ICE | Privacy Act 1993 (Part 3 and Schedule 1) |
| Law Commission | Law Commission | Justice | ICE | Law Commission Act 1985 (and Schedule 1) |
| Maori Affairs | Te Reo Whakapuaki Irirangi (Te Mangai Paho) | TPK (Maori Development) | ACE | Broadcasting Act 1989 (Part 4A and Schedule 1) |
| Maori Affairs | Te Taura Whiri I te Reo Maori (Maori Language Commission) | TPK (Maori Development)) | ACE | Maori Language Act 1987 (and Schedule 2) |
| Public Trust and Finance (2) | Public Trust | CCMAU / Justice and Treasury | ACE | Public Trust Act 2001 (Part 2) |
| Research, Science and Technology | Foundation for Research, Science and Technology | MoRST | Crown agent | Foundation for Research, Science and Technology Act 1990 (and Schedule 1) |
| Social Development and Employment | Children's Commissioner | Social Development | ICE | Children's Commissioner Act 2003 (and Schedule 1) |
| Social Development and Employment | Families Commission | Social Development | ACE | Families Commission Act 2003 (Part 1) |
| Social Development and Employment | New Zealand Artificial Limb Board | Social Development | ACE | Social Welfare (Transitional Provisions) Act 1990 (Part 3 and Schedule 3) |
| Social Development and Employment | Retirement Commissioner | Social Development | ACE | New Zealand Superannuation and Retirement Income Act 2001 (Part 4 and Schedule 6) |
| Social Development and Employment | Social Workers Registration Board | Social Development | Crown agent | Social Workers Registration Act 2003 (Part 6 and Schedule 1) |
| Sport and Recreation | New Zealand Sports Drug Agency | Culture and Heritage | ICE | New Zealand Sports Drug Agency Act 1994 (Part 2 and Schedule) |
| Sport and Recreation | Sport and Recreation New Zealand | Culture and Heritage | Crown agent | Sport and Recreation New Zealand Act 2002 (Part 2) |
| Tertiary Education | Tertiary Education Commission | Education | Crown agent | Education Act 1989 (Part 13A) |
| Tertiary Education | Tertiary education institutions (33) | Education | TEIs | Education Act 1989 (Parts 14 and 15 and Schedule 13A) |
| Tourism | New Zealand Tourism Board | Economic Development | Crown agent | New Zealand Tourism Board Act 1991 (Part 1 and Schedule 1) |
| Transport | Civil Aviation Authority of New Zealand | Transport | Crown agent | Civil Aviation Act 1990 (Part 6A and Schedule 3) |
| Transport | New Zealand Transport Agency | Transport | Crown agent | Land Transport Management Act 2003 (Part 3 and Schedule 4) |
| Transport | Maritime New Zealand | Transport | Crown agent | Maritime Transport Act 1994 (Part 29 and Schedule 1) |
| Transport | Transit New Zealand | Transport | Crown agent | Land Transport Management Act 2003 (Part 3 and Schedule 4) |
| Transport | Transport Accident Investigation Commission | Transport | ICE | Transport Accident Investigation Commission Act 1990 (Part 2 and Schedule) |
Question:
how many companies fall under the ace category
Answer:
22