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:
| Week # | Theme | Original artist | Order # | Result |
| --- | --- | --- | --- | --- |
| Audition (Miami) | N/A | Aretha Franklin | N/A | Advanced |
| Hollywood (Round 1) | N/A | Aretha Franklin | N/A | Advanced |
| Hollywood (Round 2) | N/A | The Kiki Dee Band | N/A | Advanced |
| Top 24 (12 Women) | 1960s | Dusty Springfield | 10 | Safe |
| Top 20 (10 Women) | 1970s | Harold Melvin | 4 | Safe |
| Top 16 (8 Women) | 1980s | Phil Collins | 6 | Safe |
| Top 12 | Lennon–McCartney | The Beatles | 3 | Safe |
| Top 11 | The Beatles | The Beatles | 11 | Safe |
| Top 10 | Year They Were Born | i-TEN | 1 | Safe |
| Top 9 | Dolly Parton | Dolly Parton | 3 | Eliminated |
Question:
What is the order number that has top 20 (10 women)  as the week number?
Answer:
4.0