I1 ENHANCED SILTATION Sediment retention in the reservoir [x1.0E+6 metric tons], 1982 (6) Year SS flowing into reservoirSS in outflow from reservSS depositing in reservoir 1965/66 92.8 5.7 87.1 1966/67 75.9 3.8 72.1 1967/68 136.8 3.1 133.7 1968/69 80.7 2.3 78.4 1969/70 94.3 1.9 92.4 1970/71 114.1 2.7 111.4 1971/72 111.3 2.5 108.8 1972/73 47.2 2.7 44.5 1973/74 95 2.8 92.2 1974/75 128 2.8 125.2 1975/76 181.7 1.8 179.9 1976/77 81 1.6 79.4 1977/78 99.7 2.2 97.5