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 | US Billboard | US Cash Box | US AC | CAN AC | Title |
| --- | --- | --- | --- | --- | --- |
| 1972.0 | 86.0 | 90 | – | – | "Don't Want to Say Goodbye" |
| 1972.0 | 5.0 | 4 | – | – | " Go All the Way " |
| 1972.0 | 16.0 | 10 | – | – | "I Wanna Be With You" |
| 1973.0 | 35.0 | 18 | – | – | "Let's Pretend" |
| 1973.0 | 69.0 | 37 | – | – | "Tonight" |
| 1973.0 | 94.0 | 75 | – | – | "I'm a Rocker" |
| 1974.0 | 18.0 | 24 | – | – | "Overnight Sensation (Hit Record)" |
| 1976.0 | 2.0 | 1 | 6 | 1 | " All By Myself " |
| 1976.0 | 11.0 | 9 | 1 | 1 | " Never Gonna Fall in Love Again " |
| 1976.0 | 34.0 | 38 | 33 | 29 | "Sunrise" |
| 1977.0 | 23.0 | 15 | 26 | – | " She Did It " |
| 1978.0 | 88.0 | 95 | – | – | "Boats Against the Current" |
| 1978.0 | 19.0 | 19 | 6 | 10 | "Change of Heart" |
| 1978.0 | 62.0 | 60 | 30 | 8 | " Baby I Need Your Lovin' " |
| 1980.0 | 75.0 | 83 | – | – | "It Hurts Too Much" |
| 1985.0 | 35.0 | 37 | 10 | 17 | "I Wanna Hear it from Your Lips" |
| 1985.0 | 87.0 | 79 | 16 | – | "I'm Through with Love" |
| 1987.0 | 4.0 | 3 | 2 | 6 | " Hungry Eyes " |
| 1988.0 | 3.0 | 4 | 1 | 1 | " Make Me Lose Control " |
| 1988.0 | 87.0 | – | – | – | "Reason to Try" |
Question:
What is the US cash box before 1978 with a US billboard of 35?
Answer:
18.0