;4th quarter 2020;Change in per cent;Change in per cent;3rd quarter 2020;4th quarter 2019;Breakdown of electricity sales by volume. Per cent; Last 3 mos.;Last 12 mos.; HOUSEHOLDS;22.2;54.2;-52.6;14.4;46.8;100.0; New fixed-price contracts, 1-year or less, households;24.3;40.5;-42.6;17.3;42.3;0.4; New fixed-price contracts, more than 1-year, households;32.3;-15.2;-22.7;38.1;41.8;0.0; Older fixed-price contracts, households;33.7;1.2;-9.4;33.3;37.2;1.5; Contracts tied to spot price, households;20.2;65.6;-55.4;12.2;45.3;77.1; Variable price contracts, households;28.5;25.0;-45.8;22.8;52.6;20.9; SERVICES;18.3;77.7;-57.5;10.3;43.1;100.0; New fixed-price contracts, services;18.9;14.5;-50.9;16.5;38.5;2.0; Older fixed-price contracts, services;25.9;4.4;-22.5;24.8;33.4;4.2; Contracts tied to spot price, services;17.8;95.6;-59.1;9.1;43.5;88.7; Variable price contracts, services;22.0;31.0;-52.2;16.8;46.0;5.1; MANUFACTURING EXCL. ENERGY-INTENSIVE MANUFACTURING;17.6;77.8;-59.2;9.9;43.1;100.0; New fixed-price contracts, manufacturing excl. energy-intensive manufacturing;22.2;-36.8;-43.8;35.1;39.5;2.2; Older fixed-price contracts, manufacturing excl. energy-intensive manufacturing;27.0;0.4;-20.6;26.9;34.0;3.9; Contracts tied to spot price, manufacturing excl. energy-intensive manufacturing;16.9;94.3;-61.2;8.7;43.6;86.9; Variable price contracts, manufacturing excl. energy-intensive manufacturing;19.1;52.8;-58.2;12.5;45.7;7.0; ENERGY-INTENSIVE MANUFACTURING;28.3;-0.4;-11.0;28.4;31.8;100.0; Fixed-price contracts and contracts not entered in the market, energy-intensive manufacturing;:;:;:;:;:;:; Contracts tied to spot price, energy-intensive manufacturing;12.3;108.5;-68.6;5.9;39.2;:;