Create a view to analyze the salary development

[timo2o1o]

Describe the solution you'd like
On the top of the page a diagram should be show, that plots the development of salary (normalized on 40h a week for the whole year) over the years.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.