An analysis of acquired other intangible assets follows:
| Dec 31, 2003 | Dec 31, 2002 | |||||
| in € m. | Gross | Accumulated | Net | Gross | Accumulated | Net |
| Carrying | Amortization | Carrying | Carrying | Amortization | Carrying | |
| Amount | Amount | Amount | Amount | |||
| Amortized intangible assets | ||||||
| Customer contracts | 75 | 19 | 56 | 98 | 20 | 78 |
| Investment management agreements | 62 | 14 | 48 | 70 | 9 | 61 |
| Other customer-related | 48 | 15 | 33 | 57 | 14 | 43 |
| Other | 29 | 9 | 20 | 31 | 13 | 18 |
| Total | 214 | 57 | 157 | 256 | 56 | 200 |
| Unamortized intangible assets | ||||||
| Retail investment management agreements and other | 925 | 1,111 | ||||
| Loan servicing rights | 40 | 100 | ||||
| Total other intangible assets | 1,122 | 1,411 | ||||
For the years ended December 31, 2003 and 2002, the aggregate amortization expense for other intangible assets was € 22 million and € 26 million, respectively. The estimated aggregate amortization expense for each of the succeeding five fiscal years is approximately € 17 million per year.
For the year ended December 31, 2003, the Group acquired the following other intangible assets:
| in € m. | Additions in current year | Weighted-Average |
| Amortization Period | ||
| Amortized intangible assets | ||
| Other customer-related | 5 | 5 years |
| Other | 10 | 10 years |
| Total | 15 | 8 years |
| Total other intangible assets | 15 | |
For the year ended December 31, 2002, the net carrying amount of other intangibles increased by € 1,205 million, mainly due to the acquisitions of Scudder and RREEF, which contributed € 1,161 million and € 82 million, respectively.