If the country publishes the election (voting) results online, are historical results also available?

For Presidential elections:
http://nec.gov.rw/details/?tx_ttnews%5Btt_news%5D=49&cHash=fe0bd421038d33f544e443eed4b7f31b

For Parliamentary Elections: http://nec.gov.rw/uploads/media/Amatora_y_abadepite_2008.pdf