2014: Summer
2012: March
2011: March / April / May / July and August / September
2010: January / February and March / October
2009: January and February / March / April and May / June / September / October / December
2008: January / February / March / April / May and June / July and August / September / October
2007: January / February / March / April / May / June / July / August / October / November and December
2006: January / February / March / April / May / June / July / August / September / October / November and December
2005: January / February / March / April / June / July / September / October
2004: January / February / March / April / May / June / July / August / September / October / November and December
2003: February / March / April / May / June / July / August / September / October / November and December
2002: January / February / March / April / May / June / July / August / September / October and November / December
2001: January / February / March / April / June / July / August / September / October / November / December
2000: January / February / March and April / May / June / July / August / September / October / November / December
1999: December