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:
| Single | CCM Chart | Debut | Peak Date | Peak Pos | Total Wks | Spins (since 1998) source: Mediabase |
| --- | --- | --- | --- | --- | --- | --- |
| "Entertaining Angels" | CHR | 4/20/98 | 6/8/98 | 1.0 | 14.0 | 9887.0 |
| "Entertaining Angels" | AC | 5/25/98 | 6/29/98 | 32.0 | 8.0 | 9887.0 |
| "Believe" | AC | 7/6/98 | 9/21/98 | 4.0 | 17.0 | 3114.0 |
| "Believe" | CHR | 12/14/98 | 3/1/99 | 1.0 | 13.0 | 3114.0 |
| "Hallelujah" | Rock | 7/13/98 | 9/28/98 | 4.0 | 18.0 | 144.0 |
| "WooHoo" | CHR | 7/27/98 | 9/21/98 | 1.0 | 16.0 | 615.0 |
| "WooHoo" | Rock | 1/11/99 | 3/15/99 | 20.0 | 8.0 | 615.0 |
| "Step Up to the Microphone" | CHR | 5/3/99 | 6/14/99 | 1.0 | 16.0 | 503.0 |
Question:
What CCM Chart had 18 total weeks?
Answer:
Rock