[R] plot data frame

[Chuse chuse]

Dear R user,
How can i plot this data as one time series - notice that it is not column wise.
              V1    V2   V3   V4   V5   V6   V7
 [1,] 1950.01 1.07 1.12 1.12 1.25 1.16 1.15
 [2,] 1950.07 1.16 1.20 1.30 1.31 1.36 1.34
 [3,] 1951.01 1.34 1.36 1.40 1.47 1.55 1.45
 [4,] 1951.07 1.56 1.62 1.63 1.54 1.56 1.73
 [5,] 1952.01 1.57 1.54 1.59 1.57 1.67 1.70
 [6,] 1952.07 1.81 1.83 1.71 1.74 1.85 2.09
 [7,] 1953.01 1.96 1.97 2.01 2.19 2.16 2.11
 [8,] 1953.07 2.04 2.04 1.79 1.38 1.44 1.60
 [9,] 1954.01 1.18 0.97 1.03 0.96 0.76 0.64
[10,] 1954.07 0.72 0.92 1.01 0.98 0.93 1.14

Thank you very much beforehand.
Chuse