TimePeriod ParseTimePeriod(string i)
{
string[] s = i.Split('-');
int year = int.Parse(s[0]);
int month = int.Parse(s[1]);
var dateTime = new DateTimeOffset(year, month, 0, 0, 0, 0, TimeSpan.Zero);
return(TimePeriod.FromYearMonth(dateTime));
}
