Table of Contents The following table shows the amortized cost of loans and leases, segregated by portfolio segment, credit quality rating and year of origination as of December 31, 2020. Term Loans and Leases by Origination Year (Dollars in thousands) 2020 2019 2018 2017 2016 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial and agricultural Grades 1-6 $ 666,905  $ 193,555  $ 134,411  $ 92,916  $ 26,034  $ 19,790  $ 291,990  $ —  $ 1,425,601  Grades 7-12 6,788  1,699  4,726  3,507  1,200  2,134  33,067  —  53,121  Total commercial and agricultural 673,693 195,254 139,137 96,423 27,234 21,924 325,057 — 1,478,722 Auto and light truck Grades 1-6 248,932  141,841  52,749  24,101  4,210  608  —  —  472,441  Grades 7-12 19,113  27,136  12,796  8,612  2,250  21  —  —  69,928  Total auto and light truck 268,045 168,977 65,545 32,713 6,460 629 — — 542,369 Medium and heavy duty truck Grades 1-6 92,698  88,314  44,205  31,773  15,644  4,840  —  —  277,474  Grades 7-12 —  978  —  —  632  88  —  —  1,698  Total medium and heavy duty truck 92,698 89,292 44,205 31,773 16,276 4,928 — — 279,172 Aircraft Grades 1-6 429,283  153,358  93,042  95,457  43,972  20,966  6,370  —  842,448  Grades 7-12 11,519  2,561  479  596  2,187  1,670  —  —  19,012  Total aircraft 440,802 155,919 93,521 96,053 46,159 22,636 6,370 — 861,460 Construction equipment Grades 1-6 311,174  180,550  96,320  42,713  12,624  5,722  17,502  737  667,342  Grades 7-12 17,518  13,743  10,642  398  237  85  2,988  1,935  47,546  Total construction equipment 328,692 194,293 106,962 43,111 12,861 5,807 20,490 2,672 714,888 Commercial real estate Grades 1-6 190,725  204,477  173,847  175,009  69,022  122,762  373  —  936,215  Grades 7-12 9,518  7,990  5,173  6,684  1,762  2,522  —  —  33,649  Total commercial real estate 200,243 212,467 179,020 181,693 70,784 125,284 373 — 969,864 Residential real estate and home equity Performing 133,829  65,690  18,194  22,929  41,847  86,106  135,255  5,703  509,553  Nonperforming —  —  21  14  —  1,435  247  109  1,826  Total residential real estate and home equity 133,829 65,690 18,215 22,943 41,847 87,541 135,502 5,812 511,379 Consumer Performing 43,824  34,409  18,904  7,005  2,259  793  23,869  —  131,063  Nonperforming 2  99  78  36  8  2  159  —  384  Total consumer $ 43,826 $ 34,508 $ 18,982 $ 7,041 $ 2,267 $ 795 $ 24,028 $ — $ 131,447 62