Dial-up has seen a significant fall in usage, with the potential to cease to exist in future as more users switch to broadband. In 2000, about 34% of the U.S. population used dial-up, compared to 3% in 2013. One contributing factor is the bandwidth requirements of newer computer programs, like antivirus software, which automatically download sizeable updates in the background when a connection to the Internet is first made. These background downloads can take several minutes or longer and, until all updates are completed, they can severely impact the amount of bandwidth available to other applications like Web browsers. Since an "always on" broadband is the norm expected by most newer applications being developed, this automatic background downloading trend is expected to continue to eat away at dial-up's available bandwidth to the detriment of dial-up users' applications. Many newer websites also now assume broadband speeds as the norm, and when connected to with slower dial-up speeds may drop (timeout) these slower connections to free up communication resources. On websites that are designed to be more dial-up friendly, use of a reverse proxy prevents dial-ups from being dropped as often but can introduce long wait periods for dial-up users caused by the buffering used by a reverse proxy to bridge the different data rates. Despite the rapid decline, dial-up Internet still exists in aforementioned rural areas, and many areas of developing and underdeveloped nations.