It's funny. 100% of high rise jumping cases whether men or women, whether I attended as police or passed by as civilian, are all Chinese. No Malays, no Indians.
It's not a recent observation. I've observed since decades ago. Once in PRC I was chit-chatting over this with my GF bro when we ran out of topics over beer. He said, of course, Chinese invented skydiving suicide since Chinese invented high-walled castles and pagodas. We laughed and cheered over another round of beer.