infection levels might be levelling off, with HIV prevalence in pregnant women at 30% in 2007, 29% in 2006, and 28% in 2005. The decrease in the percentage of young pregnant women (15–24 years) found to be infected with HIV can be extrapolated to suggest a possible decline in the annual number of new infections. By age Between 2005 and 2008, the number of older teenagers with HIV/AIDS has nearly halved. Between 2002 and 2008, prevalence among South Africans over 20 years old have increased whereas the figure for those under 20 years old have dropped somewhat over the same period. Condom use is highest among the youth and lowest among older people. More than 80% of men and more than 70% of women under 25 years old use condoms, and slightly more than half of men and women aged 25–49 claim to use condoms. More than 30% of young adults and more than 80% of older adults are aware of the dangers posed by HIV/AIDS. Knowledge about HIV/AIDS is lowest among people older than 50 years—less than two-thirds know exactly what HIV/AIDS is. By province In 2008, more than half (55%) of all South Africans infected with HIV resided in the KwaZulu-Natal and Gauteng provinces. Between 2005 and 2008, the total number of people infected with HIV/AIDS has increased in all of South Africa's provinces except KwaZulu-Natal and Gauteng. Nevertheless, KwaZulu-Natal still has the highest infection rate at 15.5% In the province with the lowest infection rate, the Western Cape, the total number of people with HIV/AIDS doubled between 2005 and 2008. Condom use has increased twofold in all provinces between 2002 and 2008. The two provinces where condoms were least used in 2002 were also the provinces where condoms are least used in 2008, namely the Northern Cape and the Western Cape. As of 2019, HIV/AIDS prevalence among South African adults ages 15 to 49 by province are: KwaZulu-Natal: 27.0% Mpumalanga: 22.8% Free State: 25.5% North West: 22.7% Gauteng: 17.6% Eastern Cape: 25.2% Limpopo: 17.2% Northern Cape: 13.9% Western Cape: 12.6% Awareness campaigns The four main HIV/AIDS awareness campaigns in South Africa are Khomanani (funded by the government), LoveLife (primarily privately funded), Soul City (a television drama for adults) and Soul Buddyz (a television series for teenagers). Soul City and Soul Buddyz are the most successful campaigns although both campaigns experienced a slight loss of effectiveness between 2005