NDateTimeScaleConfigurator dateTimeScale = new NDateTimeScaleConfigurator();
    dateTimeScale.LabelStyle.ContentAlignment = ContentAlignment.TopLeft;
    dateTimeScale.LabelStyle.Offset = new NLength(-7);
    dateTimeScale.LabelValueFormatter = new NDateTimeValueFormatter(" yyyy");
    dateTimeScale.EnableUnitSensitiveFormatting = false;
    dateTimeScale.AutoDateTimeUnits = new NDateTimeUnit[] { NDateTimeUnit.Year };
    dateTimeScale.OuterMajorTickStyle.Length = new NLength(10);
    chart.Axis(StandardAxis.PrimaryX).ScaleConfigurator = dateTimeScale;