Year

January

February

March

April

May

June

July

August

September

October

November

December

1987

1

3

0.5

1

0

0

0

1

1

0.5

3

0.5

1988

0

0

1.5

0

1

1

0

0

0

1

0

2.5

1989

0

1

0.5

1

0

0

0.5

1

0.5

0

0

0.5

1990

1

0

0

0

1

1

3

2

1

0.5

1

0

1991

0

0

0

0

0

1

0.5

1

1

0

0

1.5

1992

0

0

1

1

0

2

0

1

0

0.5

1

0.5

1993

0

0

0.5

0

0

0

0.5

1

0.5

0

1

0

1994

0

0

0.5

2

0.5

0

0

3

1

0.5

1

0

1995

0

0

0

0

1.5

1

0.5

1

0

1.5

0

1.5

1996

3

1

0.5

0

0.5

1

9

3

0

2

1

0.5

1997

5

1

1.5

0

0.5

1

2

1

0.5

0

0

0.5

1998

1

1

0

1

1.5

2

0

0

0

1

1

1

1999

0

3

0.5

0

0

0

0

0

0

2.5

0

0

2000

1

1

0

3

0.5

1

1

4

2

0.5

1

0.5

2001

0

3

0.5

1

0.5

0

1.5

0

1

0

1

0.5

2002

0

2

0.5

0

0.5

2

1

2

0

1.5

2

1.5

2003

1

1

0.5

1

3

3

0.5

2

1

1

0

0

2004

6

0

1

3

2

7

2

2

3

1

2

0

2005

1

1

1

3

1

2

2.5

1

1

0.5

1

1.5

2006

1

3

2.5

1

0.5

2

0.5

0

1

1

3

1

2007

1

2

1.5

3

1.5

4

2.5

1

1

0.5

1

1.5

2008

1

1

1

1

0.5

0

1.5

2

0.5

1.5

1

4

2009

1

1

0.5

2

0.5

1

0

0

0.5

1

0

0.5

2010

3

0

0.5

0

0.5

0

0

1

0.5

0.5

0

0.5

2011

1

0

1

0

0.5

0

0

2

0.5

0

2

0.5

2012

1

0

2

1

0.5

0

0

1

0.5

0.5

0

1

2013

1

1

0.5

0

0.5

0

0.5

2

1

2

2

0.5

2014

3

2

0.5

1

1

1

0.5

3

2

2

3

1.5

2015

1

7

1.5

1

1

0

1.5

3

0.5

2

0

1.5

2016

3

2

2.5

1

2

3

0

2

1

1

2

2

2017

2

3

1

1

1

1

0.5

3

2.5

1.5

1

1