N'ọnwa Eprel, anyị ruru iwu ruru tọn 2476 site n'aka ndị ahịa ọhụrụ ka ha bupụ ọkpọkọ ígwè HSS,H Beam, Efere ígwè, Ogwe akụkụ,Ọwa Ugaa Saskatoon, Kanada. Ugbu a, Ndịda Ọwụwa Anyanwụ Eshia, Etiti Ọwụwa Anyanwụ, Afrịka, Yuropu, Oceania na akụkụ ụfọdụ nke Amerịka bụ ahịa mbupụ anyị kacha mkpa, ikike mmepụta anyị kwa afọ ruru tọn 300,000.