Survival analysis

[dac_js]

I have data in following format:

data have;
input
TIME BIOMARKER;
datalines;
1 85.5
2 80.4
5 67.3
8 34.2
;
run;

I am trying to predict a time point at which the biomarker level will be below 1. Is there any way to directly conduct a survival analysis with data in this format?

I was considering to create individual level observations from this first before conducting survival analysis. The decimal points I have is making this difficult.