South Africa's railways, passengers carried (million passenger-km) was 3,502 in 2020, the latest year in the World Bank's World Development Indicators. That is down 74.45% from 13,704 in 2015 (23.88% a year on average, compounded).
Infrastructure · South Africa
South Africa: Railways, passengers carried (million passenger-km)
Yearly data from 1995 to 2020, from the World Bank.