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:
| Rank | Mountain Peak | Mountain Range | Elevation | Prominence | Isolation |
| --- | --- | --- | --- | --- | --- |
| 1.0 | Mount Rainier | Cascade Range | 4393.293 = 14,411feet 4392m | 4027.439 = 13,211feet 4027m | 01175.46 = 730.4miles 1175.5km |
| 2.0 | Mount Adams | Cascade Range | 3742.988 = 12,277feet 3743m | 2474.390 = 8,116feet 2474m | 00075.14 = 46.7miles 75.1km |
| 3.0 | Mount Baker | Cascade Range | 3285.976 = 10,778feet 3286m | 2706.707 = 8,878feet 2706m | 00213.71 = 132.8miles 213.7km |
| 4.0 | Glacier Peak | Cascade Range | 3213.720 = 10,541feet 3286m | 2292.378 = 7,519feet 2292m | 00090.18 = 56.0miles 90.2km |
| 5.0 | Bonanza Peak | Cascade Range | 2899.695 = 9,511feet 2899m | 1131.402 = 3,711feet 1,131m | 00023.04 = 14.4miles 23.2km |
| 6.0 | Mount Stuart | Cascade Range | 2870.427 = 9,415feet 2870m | 1625.524 = 5,335feet 1,626m | 00072.00 = 45.0miles 72.0km |
| 7.0 | Mount Fernow | Cascade Range | 2819.817 = 9,249feet 2819m | 0857.012 = 2,811feet 857m | 00009.44 = 5.9miles 9.5km |
| 8.0 | Goode Mountain | Cascade Range | 2804.878 = 9,200feet 2810m | 0857.012 = 3,808feet 1,161m | 00027.20 = 17.0miles 27.2km |
| 9.0 | Mount Shuksan | Cascade Range | 2782.622 = 9,127feet 2782m | 1340.549 = 4,397feet 1,340m | 00016.64 = 10.4miles 16.7km |
| 10.0 | Buckner Mountain | Cascade Range | 2778.659 = 9,114feet 2778m | 0925.000 = 3,034feet 925m | 00006.61 = 4.1miles 6.6km |
| 11.0 | Jack Mountain | Cascade Range | 2764.024 = 9,066feet 2763m | 1276.220 = 4,186feet 1,276m | 00026.00 = 16.3miles 26.0km |
| 12.0 | Mount Spickard | Cascade Range | 2737.500 = 8,979feet 2738m | 1457.021 = 4,779feet 1,457m | 00036.46 = 19.0miles 30.5km |
| 13.0 | Black Peak | Cascade Range | 2734.756 = 8,970feet 2734m | 1051.829 = 3,450feet 1,051m | 00008.16 = 5.1miles 8.2km |
| 14.0 | Mount Redoubt | Cascade Range | 2730.488 = 8,956feet 2730m | 0502.744 = 1,649feet 503m | 00004.56 = 2.9miles 4.6km |
| 15.0 | North Gardner Mountain | Cascade Range | 2730.488 = 8,956feet 2730m | 1218.293 = 3,996feet 1,218m | 00043.68 = 27.3miles 43.7km |
| 16.0 | Dome Peak | Cascade Range | 2719.512 = 8,920feet 2719m | 0926.829 = 3,040feet 927m | 00043.68 = 27.3miles 43.7km |
| 17.0 | Silver Star Mountain | Cascade Range | 2705.793 = 8,875feet 2705m | 0740.854 = 2,430feet 742m | 00007.10 = 4.4miles 7.1km |
Question:
How many different isolation numbers does the Jack Mountain peak have?
Answer:
1.0