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/

FieldDescription
MonthMonth the data is for
ANZ heavy traffic indexHeavy traffic data (mostly trucks) - raw data
ANZ light traffic indexLight 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.

FieldDescription
MonthThe month the data is for
Average of GMSLThe 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:

https://www.nasa.gov/missions/jason-cs-sentinel-6/sentinel-6-michael-freilich/nasa-analysis-shows-unexpected-amount-of-sea-level-rise-in-2024/ 

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.

FieldDescription
YearModel year of car
MakeThe make of the car
ModelThe model of the car
Full DescriptionThe full TradeMe description of the car
OdometerHow far the car has driven
Body StyleStyle of car
SeatsNumber of seats in the car
Fuel TypeType of fuel the car uses
Engine SizeEngine size of the car (bank for electric cars)
TransmissionIs the car manual, automatic or tiptronic
ColourColour of the car
Fuel EfficiencyFuel Efficiency of the car (L/100km)
Carbon EmissionsCarbon emissions of the car (grams/km)
Asking PriceAsking price of the car, if blank it was an auction, so no asking price.
On Road CostsAre on-road costs included
LinkLink to the auction
ListingListing Number