Step 1

Serial#

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Mean

basis

50

177

170

318

173

100

139

79

43

22

86

42

117

11011

104

132

124

143

120

117

119

112

104

107

106

107

117

32415

92

128

139

159

129

121

147

97

89

99

100

95

117

18264

112

136

125

139

110

102

121

116

102

94

110

128

117