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:
| Member | Week Arrived On Main Island | Week Sent To Third Island | Original Tribe | Tribe They Chose To Win |
| --- | --- | --- | --- | --- |
| Member | Week Arrived On Main Island | Week Sent To Third Island | Original Tribe | Tribe They Chose To Win |
| Nick Weston 25, Sussex Chef and Survival Expert | n/a | 1 | Hawk | Tiger |
| Char Counsell 23, Somerset Farmer | 1 | 2 | Tiger | Tiger |
| James Ward 23, Northampton Riding Instructor | 1 | 2 | Shark | Tiger |
| Diva Morthor 19, Essex PA | 3 | 4 | Shark | Tiger |
| Mike McHale 23, London Graduate | 4 | 5 | Tiger | Tiger |
| Lottie Moore 22, Cheshire Graduate | 6 | 7 | Shark | Tiger |
| Rowan Bailey 26, Chichester Surf Fashion Salesman | 7 | 8 | Tiger | Tiger |
| Adelina Ekechukwu 22, Manchester Unemployed | 8 | 9 | Shark | Tiger |
| Beau Devonish-Inua 27, Essex Labourer | 9 | 10 | Tiger | Tiger |
| Brie Doffing 19, Berkshire GAP year student | 11 | 12 | Tiger | Tiger |
| Sarah Collings 26, London Receptionist | 12 | 13 | Tiger | Tiger |
| Sarah Sole 23, Devon Student | 13 | 14 | Shark | Tiger |
Question:
How many members arrived on the main island in week 4?
Answer:
1.0