Dear R users,

I wonder if there is a way that I can plot a time series data which is in a
wide format like this:

CITY_NAME       2000Q1    2000Q2      2000Q3        2000Q4     2001Q1
2001Q2      2001Q3     2001Q4     2002Q1      2002Q2
CITY1                100.5210   101.9667  103.24933   104.0506   104.4317
105.3921   106.7643   107.5202   107.2561   107.8184
CITY2                100.0412   100.6146  103.20293   104.0867   104.6612
106.6126   109.3514   110.1943   110.9480   113.0071
CITY3                 99.5895    99.2298   99.26947    99.4101   100.5776
101.3719   101.5957   102.2411   103.4390   105.1745
CITY4                 99.6491   101.5386  104.90953   106.1065   108.1785
110.6845   113.3746   114.1254   116.2121   119.1033
CITY5                100.9828   103.6847  105.04793   106.5925   108.7437
110.5549   111.9343   112.6704   113.6201   115.3020

Ideally, each city of the five city is represented by a line in the plot.

Any suggestion is appreciated!

Thanks!
Gary

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