SEX;SOCIAL CLASS;DEGREE OF DIFFICULTY;Total BOTH SEXES;Total;Total;100.00 BOTH SEXES;Total;No difficulty;62.52 BOTH SEXES;Total;With some difficulty;16.58 BOTH SEXES;Total;With great difficulty;7.77 BOTH SEXES;Total;Cannot do it at all;13.07 BOTH SEXES;Total;Has not tried or needed to;0.07 BOTH SEXES;I;Total;100.00 BOTH SEXES;I;No difficulty;76.52 BOTH SEXES;I;With some difficulty;13.52 BOTH SEXES;I;With great difficulty;5.23 BOTH SEXES;I;Cannot do it at all;4.72 BOTH SEXES;I;Has not tried or needed to;0.00 BOTH SEXES;II;Total;100.00 BOTH SEXES;II;No difficulty;67.98 BOTH SEXES;II;With some difficulty;16.47 BOTH SEXES;II;With great difficulty;7.44 BOTH SEXES;II;Cannot do it at all;8.12 BOTH SEXES;II;Has not tried or needed to;0.00 BOTH SEXES;III;Total;100.00 BOTH SEXES;III;No difficulty;65.17 BOTH SEXES;III;With some difficulty;17.11 BOTH SEXES;III;With great difficulty;7.12 BOTH SEXES;III;Cannot do it at all;10.61 BOTH SEXES;III;Has not tried or needed to;0.00 BOTH SEXES;IV;Total;100.00 BOTH SEXES;IV;No difficulty;60.24 BOTH SEXES;IV;With some difficulty;16.44 BOTH SEXES;IV;With great difficulty;8.42 BOTH SEXES;IV;Cannot do it at all;14.62 BOTH SEXES;IV;Has not tried or needed to;0.28 BOTH SEXES;V;Total;100.00 BOTH SEXES;V;No difficulty;58.80 BOTH SEXES;V;With some difficulty;17.04 BOTH SEXES;V;With great difficulty;7.83 BOTH SEXES;V;Cannot do it at all;16.30 BOTH SEXES;V;Has not tried or needed to;0.04 BOTH SEXES;VI;Total;100.00 BOTH SEXES;VI;No difficulty;55.80 BOTH SEXES;VI;With some difficulty;18.40 BOTH SEXES;VI;With great difficulty;9.91 BOTH SEXES;VI;Cannot do it at all;15.81 BOTH SEXES;VI;Has not tried or needed to;0.09 BOTH SEXES;Not recorded;Total;100.00 BOTH SEXES;Not recorded;No difficulty;44.05 BOTH SEXES;Not recorded;With some difficulty;16.16 BOTH SEXES;Not recorded;With great difficulty;11.92 BOTH SEXES;Not recorded;Cannot do it at all;27.63 BOTH SEXES;Not recorded;Has not tried or needed to;0.25 Men;Total;Total;100.00 Men;Total;No difficulty;73.04 Men;Total;With some difficulty;13.30 Men;Total;With great difficulty;5.12 Men;Total;Cannot do it at all;8.49 Men;Total;Has not tried or needed to;0.05 Men;I;Total;100.00 Men;I;No difficulty;84.59 Men;I;With some difficulty;9.80 Men;I;With great difficulty;2.11 Men;I;Cannot do it at all;3.50 Men;I;Has not tried or needed to;0.00 Men;II;Total;100.00 Men;II;No difficulty;79.55 Men;II;With some difficulty;11.64 Men;II;With great difficulty;4.69 Men;II;Cannot do it at all;4.12 Men;II;Has not tried or needed to;0.00 Men;III;Total;100.00 Men;III;No difficulty;74.16 Men;III;With some difficulty;13.02 Men;III;With great difficulty;5.43 Men;III;Cannot do it at all;7.40 Men;III;Has not tried or needed to;0.00 Men;IV;Total;100.00 Men;IV;No difficulty;68.64 Men;IV;With some difficulty;16.01 Men;IV;With great difficulty;5.58 Men;IV;Cannot do it at all;9.58 Men;IV;Has not tried or needed to;0.19 Men;V;Total;100.00 Men;V;No difficulty;68.73 Men;V;With some difficulty;14.42 Men;V;With great difficulty;5.36 Men;V;Cannot do it at all;11.44 Men;V;Has not tried or needed to;0.06 Men;VI;Total;100.00 Men;VI;No difficulty;69.19 Men;VI;With some difficulty;13.08 Men;VI;With great difficulty;7.61 Men;VI;Cannot do it at all;10.12 Men;VI;Has not tried or needed to;0.00 Men;Not recorded;Total;100.00 Men;Not recorded;No difficulty;65.86 Men;Not recorded;With some difficulty;10.74 Men;Not recorded;With great difficulty;8.52 Men;Not recorded;Cannot do it at all;14.60 Men;Not recorded;Has not tried or needed to;0.28 Women;Total;Total;100.00 Women;Total;No difficulty;53.57 Women;Total;With some difficulty;19.37 Women;Total;With great difficulty;10.02 Women;Total;Cannot do it at all;16.96 Women;Total;Has not tried or needed to;0.08 Women;I;Total;100.00 Women;I;No difficulty;67.57 Women;I;With some difficulty;17.65 Women;I;With great difficulty;8.70 Women;I;Cannot do it at all;6.08 Women;I;Has not tried or needed to;0.00 Women;II;Total;100.00 Women;II;No difficulty;57.83 Women;II;With some difficulty;20.70 Women;II;With great difficulty;9.85 Women;II;Cannot do it at all;11.62 Women;II;Has not tried or needed to;0.00 Women;III;Total;100.00 Women;III;No difficulty;57.54 Women;III;With some difficulty;20.58 Women;III;With great difficulty;8.56 Women;III;Cannot do it at all;13.33 Women;III;Has not tried or needed to;0.00 Women;IV;Total;100.00 Women;IV;No difficulty;51.27 Women;IV;With some difficulty;16.91 Women;IV;With great difficulty;11.46 Women;IV;Cannot do it at all;19.99 Women;IV;Has not tried or needed to;0.37 Women;V;Total;100.00 Women;V;No difficulty;50.16 Women;V;With some difficulty;19.33 Women;V;With great difficulty;9.97 Women;V;Cannot do it at all;20.52 Women;V;Has not tried or needed to;0.02 Women;VI;Total;100.00 Women;VI;No difficulty;48.36 Women;VI;With some difficulty;21.36 Women;VI;With great difficulty;11.18 Women;VI;Cannot do it at all;18.97 Women;VI;Has not tried or needed to;0.13 Women;Not recorded;Total;100.00 Women;Not recorded;No difficulty;37.26 Women;Not recorded;With some difficulty;17.85 Women;Not recorded;With great difficulty;12.98 Women;Not recorded;Cannot do it at all;31.68 Women;Not recorded;Has not tried or needed to;0.24