Table:
text: Eric Carmen
Chart singles
Chart singles
Year_ US_Billboard US_Cash_Box US_AC CAN_AC Title
1972 86 90 – – Don`t Want to Say Goodbye
1972 5 4 – –  Go All the Way 
1972 16 10 – – I Wanna Be With You
1973 35 18 – – Let`s Pretend
1973 69 37 – – Tonight
1973 94 75 – – I`m a Rocker
1974 18 24 – – Overnight Sensation (Hit Record)
1976 2 1 6 1  All By Myself 
1976 11 9 1 1  Never Gonna Fall in Love Again 
1976 34 38 33 29 Sunrise
1977 23 15 26 –  She Did It 

text: Eric Carmen
Chart singles
Chart singles
Year_ US_Billboard US_Cash_Box US_AC CAN_AC Title
1978 88 95 – – Boats Against the Current
1978 19 19 6 10 Change of Heart
1978 62 60 30 8  Baby I Need Your Lovin` 
1980 75 83 – – It Hurts Too Much
1985 35 37 10 17 I Wanna Hear it from Your Lips
1985 87 79 16 – I`m Through with Love
1987 4 3 2 6  Hungry Eyes 
1988 3 4 1 1  Make Me Lose Control 
1988 87 – – – Reason to Try

Question: What is the pre 1978 US box office with a US billboard of 35 under Eric Carmen?