Linechart resolution - problem

[skuske]

If you have an array of values, which are all pretty close, then the line chart is not drawn properly. Instead a simple line is drawn, which does not reflect any ups and downs at all:

Values:

1.0205,
1.0207,
1.0209,
1.0207,
1.0207,
1.0205,
1.0202,
1.0201,
1.0199,
1.0197,
1.0196,
1.0193,
1.0192,
1.0192,
1.019,
1.0188,
1.0187,
1.0186,
1.0185,
1.0187,
1.0188,
1.0188,
1.019,
1.0193,
1.0195,
1.0198,
1.0199,
1.0201,
1.0201,
1.0201,
1.0201,
1.02,
1.0199,
1.0198,
1.0198,
1.0197,
1.0197,
1.0198,
1.0196,
1.0194,
1.0194,
1.0196,
1.0197,
1.0198,
1.02,
1.0202,
1.0205,
1.0206,
1.0206,
1.0206

How can that be fixed?

TIA.