YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1982 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 68.18 | b | 68.77 | 69.26 | 69.57 | 67.77 | 67.97 | 64.48 | 68.00 | e | ||||||
1983 | 63.71 | 63.52 | a | 64.16 | 64.57 | 64.97 | 65.76 | a | 65.45 | 66.77 | a | 70.52 | a | 70.10 | 71.10 | 69.37 | d | 66.67 | ||||||||
1984 | 67.32 | 64.66 | 67.24 | f | 65.47 | 66.16 | 67.00 | e | 66.50 | a | 67.65 | 67.17 | 70.18 | c | 68.89 | b | 66.48 | b | 67.04 | a | ||||||
1985 | 63.21 | b | 64.73 | b | 64.41 | b | 63.89 | b | 64.81 | 66.64 | b | 64.97 | 65.35 | 72.79 | a | 68.35 | 64.33 | 63.03 | 65.54 | |||||||
1986 | 63.77 | 63.71 | 65.26 | 65.37 | 66.90 | a | 64.63 | 69.10 | b | 69.97 | 67.77 | 68.87 | 69.20 | 65.81 | 66.70 | |||||||||||
1987 | 64.17 | a | 62.79 | 64.65 | 65.63 | 66.29 | 68.83 | 70.68 | 70.35 | 71.43 | 70.45 | 69.37 | 67.24 | b | 67.66 | |||||||||||
1988 | 65.19 | 65.31 | 64.94 | 64.70 | 66.94 | 67.17 | 69.23 | 68.16 | 68.53 | 69.03 | 68.87 | 66.11 | c | 67.01 | ||||||||||||
1989 | 65.13 | 64.04 | 65.90 | 65.83 | 68.42 | 68.30 | 70.74 | 68.55 | 67.60 | 67.45 | 65.67 | 64.55 | 66.85 | |||||||||||||
1990 | 65.58 | 63.50 | 62.81 | 63.13 | 64.55 | t | 67.63 | c | 67.45 | 68.87 | 69.43 | 67.87 | ----- | z | 63.76 | b | 66.00 | b | ||||||||
1991 | 60.96 | d | 68.67 | g | 60.35 | ----- | z | 65.34 | b | 66.40 | 67.97 | b | 70.58 | 68.67 | 68.52 | 69.30 | 65.03 | a | 66.31 | b | ||||||
1992 | 63.45 | b | 63.21 | a | 63.87 | 65.97 | a | 68.39 | 70.21 | a | 70.34 | b | 70.67 | a | 71.04 | b | 69.93 | b | 68.57 | b | 67.38 | b | 67.75 | |||
1993 | 63.30 | d | 62.93 | 63.97 | a | 67.10 | a | 66.50 | c | 68.86 | a | 69.48 | 69.77 | 70.18 | b | 69.39 | c | 66.45 | a | 66.69 | b | 67.05 | ||||
1994 | 64.10 | a | 65.14 | f | 64.85 | d | 65.93 | 66.80 | a | 68.07 | b | 69.67 | a | 69.85 | e | 69.52 | i | 68.60 | k | 68.90 | a | 65.45 | b | 67.07 | c | |
1995 | 63.26 | 63.29 | 65.79 | b | 66.96 | c | 67.71 | 68.75 | b | 70.76 | b | 69.29 | 69.38 | a | 70.55 | 68.14 | a | 66.77 | 67.55 | |||||||
1996 | 65.52 | f | 64.14 | v | 64.19 | e | 67.67 | 70.03 | 70.60 | 70.19 | 69.63 | a | 70.47 | 69.80 | a | 68.82 | b | 65.94 | 68.73 | b | ||||||
1997 | 65.27 | a | 65.42 | b | 65.70 | a | 65.63 | 67.29 | 69.60 | 70.33 | a | 69.21 | b | 69.43 | 69.65 | 67.72 | a | 65.37 | a | 67.55 | ||||||
1998 | 64.27 | a | 63.86 | 65.68 | 67.11 | b | 67.00 | 68.63 | 67.81 | 70.55 | 68.90 | a | 68.32 | 67.83 | 66.26 | 67.18 | ||||||||||
1999 | 64.68 | 64.96 | 64.42 | 64.97 | 66.68 | 66.53 | 66.97 | a | 70.07 | a | 68.55 | a | 68.42 | l | 65.95 | i | 64.38 | j | 66.42 | c | ||||||
2000 | 62.95 | i | 64.60 | i | 65.18 | i | 65.90 | i | 66.91 | h | 67.58 | d | 70.14 | j | 70.09 | h | 68.86 | i | 68.50 | i | 67.29 | m | 66.05 | k | 67.58 | k |
2001 | 66.14 | i | 63.50 | l | 64.76 | j | 66.33 | i | 65.60 | p | 66.74 | k | 68.71 | x | ----- | z | 68.33 | c | 68.20 | a | 68.43 | 67.43 | c | 68.10 | h | |
2002 | 65.08 | g | 63.12 | b | 64.00 | b | 67.36 | b | 68.13 | 67.93 | a | 68.77 | e | 69.93 | d | 68.54 | b | 68.69 | b | 67.21 | b | 65.21 | c | 67.17 | a | |
2003 | 64.77 | a | 63.35 | e | 65.54 | c | 66.92 | d | 66.47 | a | 68.03 | 68.17 | a | 70.00 | a | 69.74 | g | 69.08 | e | 67.11 | k | 65.79 | l | 66.92 | c | |
2004 | 65.19 | j | 64.95 | i | 65.42 | g | 66.38 | a | 68.50 | e | 67.06 | n | 68.41 | n | 69.45 | i | 69.60 | j | 69.83 | b | 67.81 | i | 66.65 | e | 67.84 | h |
2005 | 64.71 | c | 67.67 | d | 65.39 | c | 66.69 | d | 68.41 | d | 70.36 | b | 71.12 | f | 69.79 | c | 70.00 | c | ----- | z | 66.61 | b | 64.87 | 67.45 | b | |
2006 | 65.39 | 62.68 | 65.81 | 65.13 | 66.10 | 67.30 | c | 69.03 | a | 70.10 | a | 69.14 | a | 69.07 | a | 68.76 | a | 65.45 | b | 67.00 | ||||||
2007 | 64.71 | 63.93 | 64.19 | 65.63 | 67.10 | 68.76 | a | 68.84 | 68.80 | a | 70.20 | 68.55 | 65.86 | b | 66.00 | b | 66.88 | |||||||||
2008 | 62.50 | a | 62.71 | a | 63.81 | 63.07 | 65.81 | 67.27 | 68.41 | b | 67.68 | c | 67.57 | 68.45 | b | 66.86 | a | 65.47 | a | 65.80 | ||||||
2009 | 63.50 | e | 61.88 | d | 63.62 | b | 64.89 | b | 67.61 | c | 68.76 | e | 68.65 | h | 70.26 | l | 69.21 | f | 71.36 | i | 68.15 | d | 65.29 | q | 65.49 | e |
2010 | 66.90 | k | 65.25 | l | 65.25 | s | 64.90 | t | 69.52 | j | 68.00 | q | 67.46 | r | 68.85 | e | 67.23 | q | 70.80 | k | 67.16 | k | 66.83 | h | 68.85 | k |
2011 | 64.87 | p | 66.45 | q | 67.43 | j | 66.40 | y | 68.26 | l | 69.29 | i | 68.64 | c | 69.79 | q | 68.64 | h | 68.13 | p | 67.92 | q | 65.89 | l | 68.64 | k |
2012 | 63.57 | q | 63.86 | o | 64.50 | e | 65.42 | d | 67.17 | a | 67.93 | b | 68.38 | b | 69.56 | d | 69.07 | b | 68.66 | b | 67.29 | b | 67.33 | d | 67.53 | b |
2013 | 65.44 | d | 63.44 | a | 65.48 | b | 66.50 | 68.53 | a | 67.77 | h | 69.29 | j | 69.17 | a | 69.88 | d | 69.05 | k | 68.31 | d | 67.65 | k | 67.10 | d | |
2014 | 66.63 | a | 66.87 | e | ----- | z | 67.84 | e | 67.73 | i | 68.21 | k | 69.80 | f | 69.50 | q | 69.83 | g | 69.62 | r | 68.48 | e | 67.38 | e | 67.44 | g |
2015 | 63.30 | u | 63.80 | w | 66.08 | r | 66.73 | d | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.73 | k |
2016 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2017 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2018 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2019 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2020 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2021 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2022 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2023 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
2024 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 64.38 | 63.98 | 64.53 | 65.80 | 67.08 | 67.99 | 68.67 | 69.20 | 69.37 | 69.03 | 67.96 | 65.98 | 66.94 | |||||||||||||
S.D. | 1.34 | 1.37 | 1.20 | 1.25 | 1.23 | 1.38 | 1.55 | 1.23 | 1.31 | 0.87 | 1.41 | 1.34 | 0.64 | |||||||||||||
SKEW | -0.18 | 1.14 | -1.66 | -0.46 | 0.20 | -0.18 | -0.69 | -1.41 | 0.55 | 0.12 | -0.52 | 0.12 | -0.86 | |||||||||||||
MAX | 67.32 | 67.67 | 65.90 | 67.84 | 70.03 | 70.60 | 70.76 | 70.67 | 72.79 | 70.55 | 71.10 | 69.37 | 67.75 | |||||||||||||
MIN | 60.96 | 61.88 | 60.35 | 63.07 | 64.81 | 64.63 | 64.97 | 65.35 | 67.17 | 67.45 | 64.33 | 63.03 | 65.54 | |||||||||||||
YRS | 24 | 23 | 25 | 28 | 26 | 27 | 25 | 27 | 25 | 24 | 26 | 26 | 14 |