Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | Street address | Years as tallest | Height ft (m) | Floors | Architect |
| --- | --- | --- | --- | --- | --- |
| Independence Hall | 520 Chestnut Street | 1748–1754 | 134 (41) | — | Edmund Woolley and Andrew Hamilton |
| Christ Church | 20 North American Street | 1754–1856 | 196 (60) | — | Robert Smith |
| Tenth Presbyterian Church | 17th & Spruce Streets | 1856–1900 | 250 (76) | — | John McArthur, Jr. |
| North American Building | 121 South Broad Street | 1900–1901 | 267 (81) | 21 | James H. Windrim |
| Philadelphia City Hall | Broad & Market Streets | 1901–1987 | 548 (167) | 9 | John McArthur, Jr. |
| One Liberty Place | 1650 Market Street | 1987–2008 | 945 (288) | 61 | Helmut Jahn |
| Comcast Center | 1701 John F. Kennedy Boulevard | 2008–present | 975 (297) | 57 | Robert A. M. Stern Architects |
Question:
How many years as tallest building was Independence Hall?
Answer:
1748–1754