Minor Update to wage plot

[CellyRanks]

This looks great but Wage plot only includes 'adult wage' from introduction of NLW. i.e. prior to 2016 this line should be equivalent to what was then the 'minimum wage' for adults.

[JolyonJoseph]

Prior to 2016 adult wage is the yellow line. We could add 'Main rate' before '22+ (1999-2009... etc.') to make this clearer?

[CellyRanks]

Ahh - i think just calling it NMW (Age+) and then directly linking it to the NLW line would work best. Although i just saw the proportion plot and maybe that's all we need!?

[JolyonJoseph]

I guess this is where the naming of things starts to confuse things. Because technically ALL the lines are NMW! I see your point but it feels a little confusing having that line labelled as NMW and the others not. Alternative options might be:

1. To label the yellow line 'Main Rate' with ages and date ranges and keep separate from NLW line
2. Do above but join to NLW line. They'd be the same colour and the factor level label will be long and maybe confusing (i.e., NMW age 22+ from 1999-2009; 21+ from 2010-2016; NLW age 25+ from 2016; age 23+ from 2021...)
3. Label yellow line 'Main rate' with ages and date ranges, and artificially join to the NLW line with an extra geom_line. We'd keep the colours and factor levels distinct, i.e., yellow and blue lines will stay separate, but they will be linked by a line (maybe dashed?) to show how the old ages translated to the new ages.

I think my preference would be option 3. What are both of your thoughts?

[JolyonJoseph]

This is what option 3 looks like:

[eirini-zormpa]

@all-contributors please add @JolyonJoseph for code

[allcontributors[bot]]

@eirini-zormpa

I've put up a pull request to add @JolyonJoseph! :tada: