Georgetown recorded a population of 118,363 in the 2012 Guyanese census, down 12 percent from the 134,497 people counted in the 2002 census. In 2002, about 70,962 (53%) listed themselves as Black people/Ethnic groups of Africa; 31,902 (24%) as Mixed Race; 26,542 (20%) as Indian people;  1,441 (1.1%) as Amerindian; 1075 (0.8%) as Portuguese people; 475 (0.35%) as Chinese people; 2,265 (1.7%) as "dont know/not stated"; 196 (0.15%) as white people not of Portuguese descent; 35 as "other".
Question: How many more people listed themselves as Black people/Ethnic groups of Africa compared to those who listed themselves as either Mixed Race or as "don't know/not stated"?
Answer: 36975