New from https://publicdata.hk: interactive dashboard of Hong Kong immigration statistics, updated hourly: https://publicdatahk.shinyapps.io/immdstats/
This is a proof of concept that can show how we can rapidly create custom visualizations from public data. More visualizations are in the pipeline.
If someone wants to help it look less ugly, get in touch 
And if you have something similar to share, please do!