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:
| Year | Title | Peak chart positions\nUS\nAir | Peak chart positions\nUS\nMain | Peak chart positions\nUS\nMod | Album |
| --- | --- | --- | --- | --- | --- |
| 1990 | "Dig a Hole" | — | — | — | Non-album single |
| 1993 | "Mister Love" | — | — | — | Velvet |
| 1994 | "Mister Love" | — | — | — | Rubberneck |
| 1995 | "Possum Kingdom" | 40 | 9 | 4 | Rubberneck |
| 1995 | "Away" | — | 23 | 28 | Rubberneck |
| 1996 | "Tyler" | — | — | — | Rubberneck |
| 1996 | "Backslider" | — | — | — | Rubberneck |
| 2001 | "Push the Hand" | — | 34 | — | Hell Below/Stars Above |
| 2008 | "No Deliverance" | — | 38 | — | No Deliverance |
| 2009 | "Song I Hate" | — | — | — | No Deliverance |
| 2012 | "Summer of the Strange" | — | — | — | Play.Rock.Music |
Question:
how many songs reached the us main charts?
Answer:
4