Final answer:
The level of measurement for the given data set is Ordinal. Ordinal level data can be arranged in order or ranked, but differences between data entries are not meaningful.
Step-by-step explanation:
The level of measurement for the given data set is Ordinal. Ordinal level data can be arranged in order or ranked, but differences between data entries are not meaningful. In this case, the years are arranged in chronological order, but the differences between the years do not carry any specific meaning or numerical value.