It is difficult to determine the exact number of followers for each of these religious and philosophical movements, as beliefs and affiliations can vary widely and change over time. However, as of my knowledge cutoff in 2021, some estimates for the number of followers for each movement are:
- Christianity (Catholicism, Protestantism, Orthodoxy): Approximately 2.3 billion followers worldwide.
- Islam (Sunni, Shia): Approximately 1.8 billion followers worldwide.
- Hinduism: Approximately 1.2 billion followers worldwide.
- Buddhism (Theravada, Mahayana): Approximately 500 million followers worldwide.
- Sikhism: Approximately 25 million followers worldwide.
- Judaism: Approximately 14 million followers worldwide.
- Baha'i Faith: Approximately 5-7 million followers worldwide.
- Taoism: Approximately 20 million followers worldwide.
- Confucianism: Approximately 6-7 million followers worldwide.
- Jainism: Approximately 4.2 million followers worldwide.
- Shintoism: Approximately 4 million followers worldwide.
- New Age Spirituality: The number of followers of New Age spirituality is difficult to estimate, as it encompasses a wide variety of beliefs and practices, but it is believed to be a growing movement.
- Indigenous Spirituality: The number of followers of indigenous spirituality is also difficult to estimate, as it encompasses a wide variety of beliefs and practices and is often tied to specific cultural and geographic communities.
- Wicca and Neopaganism: The number of followers of Wicca and Neopaganism is also difficult to estimate, but it is believed to be a growing movement.
- Scientology: The number of followers of Scientology is estimated to be around 50,000 to 100,000 worldwide.
- Tenrikyo: The number of followers of Tenrikyo is estimated to be around 2 million worldwide.
- Rastafarianism: The number of followers of Rastafarianism is estimated to be around 1 million worldwide.
- Falun Gong: The number of followers of Falun Gong is estimated to be around 70-100 million worldwide.
- Hindu nationalism: The number of followers of Hindu nationalism is difficult to estimate, as it encompasses a political ideology as well as a religious one.
- Atheism and secular humanism: The number of followers of atheism and secular humanism is difficult to estimate, as these can encompass a wide range of beliefs and philosophies, but it is believed to be a growing movement.
