Here's the recently released US Census Bureau 2010 Statistical Abstract, (in PDF), table 161 for Adults 18 and over who used Complementary and Alternative Medicine (CAM) in the Past Twelve Months by Selected Type of Therapy: 2002 and 2007. These stats previously released in US National Center for Health Statistics, December 2008 are included in this report. Meditation up the most, with deep breathing exercises, and yoga showing increases over the previous year. Tai chi down .3%.
Pilates: 2002 (no statistics) - 2007(1.4%)
Meditation: 2002 (7.6%) - 2007 (9.4%)
Deep breathing exercises: 2002 (11.6%) - 2007 (12.7%)
Yoga: 2002 (5.1%) - 2007 (6.1%)
Tai chi: 2002 (1.3%) - 2007 (1.0%)
