The index reference period, usually called the base year, often differs both from the weight-reference period and the price reference period.
12.
The climate table below presents weather data from the years 1981 2010 although the official K�ppen reference period was from 1961 1990.
13.
The initial reference period for liquidity data will be based on average buy and sell spreads for the period Jan 2 to April 30.
14.
Similar concerns have arisen in Europe, where the Working Time Directive limits doctors to 48 hours per week averaged out over a 6-month reference period.
15.
Average temperatures have risen continually over the last decades, leading to a rise in the mean annual temperature between 1961 90 and 1981 2010 reference periods.
16.
The index now stands at 148.0, meaning that an array of goods and services that cost $ 10 in the 1982-1984 reference period now costs $ 14.80.
17.
Ajaccio is the French city which holds the record for the number of thunderstorms in the reference period 1971-2000 with an average of 39 thunderstorm days per year.
18.
This trend has continued over the last 10 years which average 1614 hours of sunshine, a good 130 hours more than in the international reference period of 1961 90.
19.
The index now stands at 148 . 0, meaning that an array of goods and services that cost $ 10 in the 1982-1984 reference period now costs $ 14 . 80.
20.
In spite of its inland position, the maritime influence is strong enough for there to be a seasonal lag resulting in September averaging similar temperatures as June for the 1981-2010 reference period.
