... person 6% (5 4,00 0) aged couple 4% (4 8,00 0) single, no children couple, no children 19 % ( 359, 00 0) 7% (2 11 ,00 0) 21% (2 32,00 0) sole parent 12 % (9 33,00 0) couple with children 11 % (1 ,837,00 0) all households ... least 15 0 words Underground Railways Systems City Date opened Passengers per Kilometres of year route (in millions) London 18 63 394 775 Paris 19 00 19 9 11 91 Tokyo 19 27 15 5 19 27 Washington DC 19 76 12 6 ... 66 machine dishwasher telephone 42 19 74 19 76 19 78 19 79 19 81 1982 19 83 43 48 52 55 59 60 64 95 96 96 97 97 97 98 18 89 92 92 93 94 95 81 88 91 92 93 93 94 68 71 75 74 78 79 80 50 54 60 67 75 76...