Spearman correlation and splitting 1 variable

       Year.Sales.Advertise.Employees
1               1985 1.05 162 32 
2               1986 1.26 285 47 
3               1987 1.47 540 23 
4               1988 2.16 261 68 
5               1989 1.95 360 32 
6                1990 2.4 690 17 
7               1991 2.37 495 58 
8               1992 3.15 948 75 
9               1993 3.57 720 98 
10             1994 4.41 1.14 43 
11             1995 4.5 1.395 76 
12             1996 5.61 1.56 89 
13            1997 5.19 1.38 108 
14             1998 5.67 1.26 76 
15             1999 5.16 1.71 65 
16              2000 6.84 1.86 93

I want to find the Spearman correlation between Sales and Advertise and ive been stuck for 3 hours please help. I think I have to separate the 1 variable into 5 variables but Im struggling.