| | December 31, 2017 | | | December 31, 2016 | | ||
Fair Value | | | | | | | | |
Up to 1 month | | Ps. | 495,315 | | | Ps. | 881,951 | |
More than 1 month and no more than 3 months | | | 601,654 | | | | 313,386 | |
More than 3 months and no more than 1 year | | | 2,236,367 | | | | 2,204,219 | |
More than 1 year and no more than 5 years | | | 11,436,614 | | | | 9,544,836 | |
More than 5 years and no more than 10 years | | | 2,792,063 | | | | 4,345,791 | |
More than 10 years | | | 228,114 | | | | 372,550 | |
| | Ps. | 17,790,127 | | | Ps. | 17,662,733 | |
| | | | | | | | |
Cost | | | | | | | | |
Up to 1 month | | Ps. | 495,284 | | | Ps. | 880,907 | |
More than 1 month and no more than 3 months | | | 601,156 | | | | 313,048 | |
More than 3 months and no more than 1 year | | | 2,235,214 | | | | 2,199,014 | |
More than 1 year and no more than 5 years | | | 11,437,189 | | | | 9,669,504 | |
More than 5 years and no more than 10 years | | | 2,768,870 | | | | 4,483,043 | |
More than 10 years | | | 240,140 | | | | 389,433 | |
| | Ps. | 17,777,853 | | | Ps. | 17,934,949 | |