The most recent statistics on religion in Rwanda were published by the US Government in 2013, yet the source information dates back to the national Census of 2002, which reports that: 56.9% of the Rwanda's population is Roman Catholic, 26% is Protestant, 11.1% is Seventh-day Adventist, 4.6% is Muslim (mainly Sunni), 1.7% claims no religious affiliation, and 0.1% practices traditional indigenous beliefs.
Despite government efforts Rwanda has one of the highest repetition efforts even in Africa, and no doubt ongoing sectarian violence has contributed to this. The school language of instruction is Kinyarwanda at primary level, and then French and English thereafter, and at University too. The period spent at primary school is nominally 6 years.
Rwanda has many lakes. The largest, Lake Kivu, is located in the midst of the volcanic peaks in the Virunga Mountains and forms part of the border with the Democratic Republic of the Congo. The lake has a surface area of 2,665 square kilometers (1,025 square miles) and reaches a maximum depth of 475 meters (1,558 feet).