Household Budget Survey (HBS) Households, according to the subjective perception of their economic situation Distribution of households, according to the educational level of the main breadwinner and the degree of difficulty in making ends meet (reduced) Units: percentage Total With difficulty or a great deal of difficulty With certain difficulty With certain ease With ease or a great deal of ease No data recorded Total 100.00 27.00 28.71 27.73 16.49 . Uneducated or with primary studies 100.00 34.17 33.01 24.65 8.08 . Secondary education, first cycle 100.00 31.14 31.40 26.60 10.82 . Secondary education, second cycle 100.00 28.85 28.80 27.62 14.52 . Non-university higher studies 100.00 19.50 27.75 31.39 21.35 . University studies, first cycle 100.00 15.21 20.75 32.63 31.41 . University , 2nd and 3rd cycle 100.00 10.81 18.34 31.86 38.90 . Notes: .Data protected by statistical secrecy 1) Illiterate persons are included in the 'Uneducated or with primary studies' category. Source: National Statistics Institute