Extra Datasets
These are extra datasets that aren't in the main dataset folder, but might be useful for teachers.
These can be accessed from the extradata folder: https://grapher.nz/?folder=extradata
ANZ Truckometer
ANZ Monthly Publishes monthly data on traffic volume data from around the country. You can read more here: https://www.anz.co.nz/about-us/economic-markets-research/truckometer/
| Field | Description |
| Month | Month the data is for |
| ANZ heavy traffic index | Heavy traffic data (mostly trucks) - raw data |
| ANZ light traffic index | Light traffic (motorbikes, cars and vans) - raw data |
This data is up to February 2025 (Released March 2025) - March 2025 Report
Average Sea Level
This data is sourced from https://sealevel.nasa.gov/ and covers through to the end of 2024.
| Field | Description |
| Month | The month the data is for |
| Average of GMSL | The Global Mean Sea Level average for the month (Global Isostatic Adjustment (GIA) applied) variation (mm) with respect to 20-year TOPEX/Jason collinear mean reference. The data has been averaged across the month from the original raw data. |
There is a article that may be useful for students as well:
TradeMe Cars
This dataset is a random sample of cars collected from TradeMe on 21st March 2025 of cars that were listed on that day.
| Field | Description |
| Year | Model year of car |
| Make | The make of the car |
| Model | The model of the car |
| Full Description | The full TradeMe description of the car |
| Odometer | How far the car has driven |
| Body Style | Style of car |
| Seats | Number of seats in the car |
| Fuel Type | Type of fuel the car uses |
| Engine Size | Engine size of the car (bank for electric cars) |
| Transmission | Is the car manual, automatic or tiptronic |
| Colour | Colour of the car |
| Fuel Efficiency | Fuel Efficiency of the car (L/100km) |
| Carbon Emissions | Carbon emissions of the car (grams/km) |
| Asking Price | Asking price of the car, if blank it was an auction, so no asking price. |
| On Road Costs | Are on-road costs included |
| Link | Link to the auction |
| Listing | Listing Number |
Wellington Cycle Data
All the information for this dataset can be found here.
This sheet has raw data, as well as some combined data from multiple sources. This allows the data to be used for multivariate, bivariate and time series investigations.
The combined data isn't an exhaustive way to combine the data, so there might be other ways you could do it as well.