·Pakistan: 2000, 2001, 2004, 2006, 2007.
·United Arab Emirates & Oman: 2003, 2004, 2005, 2006, 2007.
·Bangladesh: 2000.
·Brunei & Philippines: 1994.
·China: 1991, 1993.
·Sahel of West Africa: Mali, Niger, Burkina Faso & Cameroon 1984 to 1986.
·Yemen 1984.
·Indonesia 1982, 1986, 1987 to 1991.
·California 1978 to 1983, 1998.
·British Columbia 1974 to 1982, 1989 to present.